make code nicer

Change-Id: I474514efdc5fef30ddb8c94f7a96e309bf151382
bcmdhd: Enable Ad-Hoc (IBSS) mode

This enables Ad-Hoc (IBSS) mode for bcmdhd. We basically just need to set the
interface flag and avoid some P2P specific settings while scanning.

Also add the "station get" command for IBSS mode.

Thanks to Bruno Randolf <br1@einfach.org>
(https://github.com/CyanogenMod/android_kernel_samsung_aries/commit/7b6680bdae231e45b6107479078c3a6af99f11dc)

Change-Id: Ie6f172ac18451e25dc58655fe2827a2f0c0230dd
mpu3050: enable accelerometer calibration

Needed for DeviceSettings.

Change-Id: I936fcef57ab3c6cd83d4a3a092405c70cf7e5318
Revert 'mpu3050: enable accelerometer calibration'

Id of reverted commit: I936fcef57ab3c6cd83d4a3a092405c70cf7e5318

Change-Id: Iedf0a82ab055dc2b222f4b3e0e3778bbb70ef3c4