Comment 1 for bug 1182839

The binary available already in the build is an older perf binary which will not work. Perf compilation is disabled since it fails with this error:
LINK /data/src/android/out/target/product/vexpress/obj/kernel/tools/perf/perf
/data/src/android/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.7-linaro/bin/../libexec/gcc/arm-linux-androideabi/4.7.3/real-ld: error: /data/src/android/out/target/product/vexpress/obj/kernel/tools/perf/liblk.a(debugfs.o): incompatible target
perf.c:217: error: undefined reference to 'debugfs_mountpoint'
util/util.c:258: error: undefined reference to 'debugfs_mount'
util/util.c:271: error: undefined reference to 'debugfs_mountpoint'
tests/parse-events.c:981: error: undefined reference to 'debugfs_find_mountpoint'
util/parse-events.c:163: error: undefined reference to 'debugfs_valid_mountpoint'
util/parse-events.c:460: error: undefined reference to 'debugfs_valid_mountpoint'
util/parse-events.c:949: error: undefined reference to 'debugfs_valid_mountpoint'
util/parse-events.c:998: error: undefined reference to 'debugfs_valid_mountpoint'
collect2: error: ld returned 1 exit status
make[1]: *** [/data/src/android/out/target/product/vexpress/obj/kernel/tools/perf/perf] Error 1
make[1]: Leaving directory `/data/src/android/kernel/linaro/vexpress/tools/perf'
make: *** [android_kernel] Error 2