Consolidate common overlays
keyboard: CAPS_LOCK/SYM key fixes from J. Peterson

Change-Id: I3cfdf8df4eb1412301170a15f20ee25b36fb8581
Update proprietary files.txt

Change-Id: Ie26bb96bbb6da0c1cfdb9a87f610e88b2a443649
Setup for kexec

Change-Id: I2e4f609858956e9f82f5e966d85956abef47e791
Setup init.safestrap for symlinks and move common files

Change-Id: I12529220b0177d19464319e265cc243ac68b7e7e
Device build changes

Change-Id: I3504ef0f636296939096b2d22f518801c43f8bfc
Update proprietary-files.txt

Change-Id: If2c43ce2cdd9600b76ff92e75b51590157fa701b
Merge of upstream changes