FogBugz #421702-1: Device tree bindings Frame Buffer II for Display Port IP

commit  72bcf867132c6626b7c491cd6da0ee2f497c41ee from
https://github.com/altera-opensource/linux-socfpga.git



Device tree bindings required for the Intel PSG (Altera) Frame Buffer II.

Signed-off-by: Ong Hean Loong <hean.loong.ong@intel.com>
Signed-off-by: Meng Li <Meng.Li@windriver.com>