i9300: Add overlay to longpress home/back & doubleTapOnHome keys

Conflicts:
	overlay/frameworks/base/core/res/res/values/config.xml
Revert "Revert "Rename camera blob""

This reverts commit 5248e72e668994dd2709a2bf57d9d70f65eec399.

Conflicts:
	proprietary-files.txt
Revert "Revert "I9300: Switch back to the binary camera HAL""

This reverts commit 19686794a2b3bd3e1c2ab6574d4adcb32ecde93e.

Conflicts:
	BoardConfig.mk
	proprietary-files.txt
SELinux: Remove duplicate rules

These are now declared in the global sepolicy

Change-Id: I2861d939a43e0f7b736534006b83505fe52fbd35
i9300 - allow lockscreen rotation
Enable Smart Cover