USB Tethering doesn't work on Origen Jelly Bean.

For Samsung Origen board, observed on:

https://android-build.linaro.org/builds/~linaro-android/origen-jb-gcc47-samsunglt-stable-blob/#build=18

Now the WiFi feature is available, although it's not stable enough, then the USB Tethering can be enabled. However, the network interface can't get IP address. If click "Back" to exit to a upper level and click "USB tethering" to enter this sub-menu again, you will see the "selected" check box backs to "unselected" status.

Observed on Linaro Jelly Bean build:

https://android-build.linaro.org/builds/~linaro-android/origen-jb-gcc47-samsunglt-stable-blob/#build=25

root@android:/ # busybox ifconfig -a
lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

rndis0 Link encap:Ethernet HWaddr 66:5B:FE:05:8B:7E
          BROADCAST MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

sit0 Link encap:UNSPEC HWaddr 00-00-00-00-E7-00-01-00-00-00-00-00-00-00-00-00
          NOARP MTU:1480 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr A0:0B:BA:6E:FA:9D
          inet addr:10.0.0.64 Bcast:10.0.0.255 Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:821 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3224 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:72349 (70.6 KiB) TX bytes:1856847 (1.7 MiB)

USB Tethering is unavailable (colour grey) due to WiFi broken:

https://bugs.launchpad.net/linaro-android/+bug/1039021

Observed on Linaro Jelly Bean image:

https://android-build.linaro.org/builds/~linaro-android/origen-jb-gcc47-samsunglt-stable-blob/#build=33

Observed same behaviour as comment #2 on Origen Linaro Jelly Bean image:

https://android-build.linaro.org/builds/~linaro-android/origen-jb-gcc47-samsunglt-stable-blob-12.08-release/#build=1

Same behaviour observed as comment #2 on Samsung Origen board with Linaro Jelly Bean image:

https://android-build.linaro.org/builds/~linaro-android/origen-jb-gcc47-samsunglt-stable-blob/#build=47

Origen is not supported anymore.