HYBRID: support writing to system

Change-Id: Ib6b3b5847d1c880b61a2c3d6b9aa0884c948de41
HYBRID fix

Change-Id: Iefa4cc6f4f1b2defea26284ae6d5526e4bd70675
missing 0

Change-Id: I9ff7d80f6f0add0765284707a7096805131215c6
Merge branch 'jb43' of https://github.com/ParanoidAndroid/android_system_core into jb43
Merge remote-tracking branch 'github/jb43' into jb43

Signed-off-by: Evan Anderson <evan1124@gmail.com>

Conflicts:
	include/private/android_filesystem_config.h

Change-Id: If2a32cfb6412968ae7a0e5c15e068057bd60dc17