Add support for mounting usb disks

(cherry picked from commit 32110d26593fdb64d719e03f39f7575496ad6634)
Add P705 for PA

(cherry picked from commit ae2c4449b7ceedc38756a0d501a09823d21fd819)

Conflicts:
	BoardConfig.mk
	custom_p705.mk
	device.mk
	full_p705.mk
	init.u0.rc
	proprietary-files.txt
	system.prop
fix