Bionic update to v4.14.5 stable release

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from a mainline/stable Linux tree or
       a minimally backported form of that patch. The v4.14.5 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/

    TEST CASE: TBD

       The following patches from the v4.14.5 stable release shall be applied:

drm/fsl-dcu: avoid disabling pixel clock twice on suspend
drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume()
drm/amdgpu: Use unsigned ring indices in amdgpu_queue_mgr_map
s390/runtime instrumentation: simplify task exit handling
usbip: fix usbip attach to find a port that matches the requested speed
usbip: Fix USB device hang due to wrong enabling of scatter-gather
uas: Always apply US_FL_NO_ATA_1X quirk to Seagate devices
usb: quirks: Add no-lpm quirk for KY-688 USB 3.1 Type-C Hub
serial: 8250_pci: Add Amazon PCI serial device ID
ANDROID: binder: fix transaction leak.
USB: serial: option: add Quectel BG96 id
USB: serial: usb_debug: add new USB device id
serial: 8250_early: Only set divisor if valid clk & baud
MIPS: Add custom serial.h with BASE_BAUD override for generic kernel
ima: fix hash algorithm initialization
s390: vfio-ccw: Do not attempt to free no-op, test and tic cda.
PM / Domains: Fix genpd to deal with drivers returning 1 from ->prepare()
s390/pci: do not require AIS facility
selftests/x86/ldt_get: Add a few additional tests for limits
selftests/x86/ldt_gdt: Robustify against set_thread_area() and LAR oddities
staging: greybus: loopback: Fix iteration count on async path
m68k: fix ColdFire node shift size calculation
serial: 8250_fintek: Fix rs485 disablement on invalid ioctl()
staging: rtl8822be: fix wrong dma unmap len
staging: rtl8188eu: avoid a null dereference on pmlmepriv
spi: sh-msiof: Fix DMA transfer size check
spi: spi-axi: fix potential use-after-free after deregistration
mmc: tmio: check mmc_regulator_get_supply return value
mmc: sdhci-msm: fix issue with power irq
hwmon: (pmbus/core) Prevent unintentional setting of page to 0xFF
perf/core: Fix __perf_read_group_add() locking
usb: phy: tahvo: fix error handling in tahvo_usb_probe()
PCI: dra7xx: Create functional dependency between PCIe and PHY
x86/intel_rdt: Initialize bitmask of shareable resource if CDP enabled
x86/intel_rdt: Fix potential deadlock during resctrl mount
serial: 8250: Preserve DLD[7:4] for PORT_XR17V35X
kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y
x86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt()
clocksource/drivers/arm_arch_timer: Validate CNTFRQ after enabling frame
dt-bindings: timer: renesas, cmt: Fix SoC-specific compatible values
EDAC, sb_edac: Fix missing break in switch
usb: mtu3: fix error return code in ssusb_gadget_init()
staging: fsl-dpaa2/eth: Account for Rx FD buffers on error path
staging: rtl8822be: Keep array subscript no lower than zero
ARM: cpuidle: Correct driver unregistration if init fails
usb: xhci: Return error when host is dead in xhci_disable_slot()
sysrq : fix Show Regs call trace on ARM
serial: sh-sci: suppress warning for ports without dma channels
usbip: tools: Install all headers needed for libusbip development
serial: imx: Update cached mctrl value when changing RTS
staging: fsl-mc/dpio: Fix incorrect comparison
perf test attr: Fix ignored test case result
perf test attr: Fix python error on empty result
kprobes/x86: Disable preemption in ftrace-based jprobes
locking/refcounts, x86/asm: Use unique .text section for refcount exceptions
s390/ptrace: fix guarded storage regset handling
tools include: Do not use poison with C++
perf tools: Fix leaking rec_argv in error cases
mm, x86/mm: Fix performance regression in get_user_pages_fast()
iio: adc: ti-ads1015: add 10% to conversion wait time
iio: multiplexer: add NULL check on devm_kzalloc() and devm_kmemdup() return values
locking/refcounts, x86/asm: Enable CONFIG_ARCH_HAS_REFCOUNT
powerpc/jprobes: Disable preemption when triggered through ftrace
powerpc/kprobes: Disable preemption before invoking probe handler for optprobes
dma-buf/sw_sync: force signal all unsignaled fences on dying timeline
staging: ccree: fix leak of import() after init()
usb: hub: Cycle HUB power when initialization fails
USB: ulpi: fix bus-node lookup
xhci: Don't show incorrect WARN message about events for empty rings
usb: xhci: fix panic in xhci_free_virt_devices_depth_first
USB: core: Add type-specific length check of BOS descriptors
USB: usbfs: Filter flags passed in from user space
usb: host: fix incorrect updating of offset
locking/refcounts: Do not force refcount_t usage as GPL-only export
Linux 4.14.5