allow override of cabc file via property

Note 8's cabc is implemented in mdnie instead of the panel
file like other smdk4x12 devices.

Change-Id: I9bd7c4bb5899cd323e4f6861bf7ceb61f459da05
Merge CyanogenMod
Modify for MoKee

Change-Id: I648c9a5065636b894ed2730433a6729f3c591405