m8: enable eject sdcard

Change-Id: I6540112dfd91d18515b51da768c62b5b34403335

Conflicts:

	overlay/frameworks/base/core/res/res/values/config.xml
m8: Fade the screen off by default

 * The bright LCD backlight on this device makes the electron beam
   look terrible as the LCD does not fade off with the beam.

Change-Id: I773953e599a7c370ce2ea49c548d871de2133577