m7-common: use permissive SELinux

* Switch SELinux to permissive mode until actual policies are created.

Change-Id: I9bc8dbe54bd99cd11014964f6ae43c6114554963
m7-common: translucent lockscreen decor

* We all know this is the real reason everyone wants kitkat.

Change-Id: I44e597ddb5f42986b1556c24f0f88c9c06f6dd73