camera: Include camera parameters in device tree

Simple option to include camera parameters into your device tree.
All info can be seen here:
http://forum.xda-developers.com/android/help/dev-mod-to-add-extra-camera-parameters-t2814578

Change-Id: Ic5b27670fd0bb6ec11f6e902ce7ec3ca2ca10827
Merge branch 'kitkat' of https://github.com/LiquidSmooth/android_frameworks_av into kitkat
Merge branch 'kitkat' of https://github.com/LiquidSmooth/android_frameworks_av into kitkat