SurfaceComposerClient: bring back getDisplayWidth, Height & Orientation

enable it with either ICS_CAMERA_BLOB or MR0_CAMERA_BLOB CFLAG

Change-Id: Ieb5d36ad2a87ed1f0aa28ae3afbd5d48c880d6ab
Merge remote-tracking branch 'origin/cm-10.1' into cm-10.1-linaro