msm8974-common: restart adb on adb root

Change-Id: I0a60f611984916846ac6d5f2a615596ec710b9db
fstab: re-add fstab.recovery

Change-Id: I02cbd0c4fd936dd78b358317d062508c37f1eab6
fstab: fixup for usb and external sd

Change-Id: I39df2f474f007a9afe9eb626c5b2f1ca4fc702c6
msm8974-common: add missing ril perms and build libril.

Change-Id: I1197b86b39e6ceccd8ba8e16b4cb91e13df8f418