Disabled usage of COPYBIT_PREMULTIPLIED_ALPHA because it is not supported by MDP 3.0 used by P350

Change-Id: I7ee606ff618b03e0fd950911bc066fe8a1a55bc3
Disable COPYBIT_PREMULTIPLIED_ALPHA for MSM7227 because it is unsupported

Change-Id: Ic1fd069552f4878fc36cc2ec9b71882961e4c98d