Add new target product for beagleboneblack

Added the following to beaglebone target product
	* Audio
	* Navigation Bar

Signed-off-by: Arun Joseph <arunjoseph@ti.com>
init.am335xevm.rc: Boost MPU frequency to 1GHz on boot
Add Camera cape support

Signed-off-by: Vishveshwar Bhat <vishveshwar.bhat@ti.com>
lights: fix brightness calculations and levels

Add overlay values for min/max brightness levels and let
Android framework handle the range.

Change-Id: I475ebfbd1ad795fb606ba140d7ec1e6528b6d75f
Signed-off-by: Vishveshwar Bhat <vishveshwar.bhat@ti.com>
protodroid: fix /data mount and enable adb via gadget ffs
protodroid: mount system from mmcblk0p2 in fstab
protodroid: cpu variant and mount_gpt in device init.rc
protodroid: add beagleboneblack-eng to lunch
protodroid: updating build product to be more minimal
protodroid: userdata img from 512MiB to 256MiB