composer: add SetClientTarget API for HWC built-in displays

Add support to change the framebuffer resolution for built-in
displays as part of SetClientTarget API. This would enable
destination scaler when needed due to difference in mixer/FB
resolution and panel resolution.

Change-Id: I83c665f48229b8b4b42d2021a6c7060a21ca06cf
CRs-Fixed: 2526524
2 files changed