Revert "surfaceflinger: premult on SGX540 causes performance issues"

This reverts commit 01fed6ca486148192db47b0aa91d09490a1e4ca3.
sf: Use DirtyRect to optimize Full GPU composition

Use layer DirtyRect information in optimizing full GPU composition by
using startTile and endTile GL calls.

Change-Id: Iec0f9de2ce667438bbcc00d02e500055068df05a
sf: Validate display device id and disable dirtyrect composition

1. Add validation check for display device id to prevent out of bound
   array access.
2. Disable Dirty rect composition feature for GPU by default

Change-Id: I4976468bb156fff197c8c38fe680e10512b4feb5
frameworks/native:  Reset dirtyRect after every queuebuffer call.

Sometimes HWR does not generate dirtyRect even when it updates the
buffer. To avoid incorrect DR calculation in such cases reset
cached dirtyRect after every queueBuffer call.

Change-Id: Iad9a2b1ecb4cf2a3789f2734a2d0e928dc56c9f0
Fix QCOM_BSP ifdef

Change-Id: Ibeee2edadcf03b92f31cf3af3c0be0e2e0af023d