hwc: Add support for WFD(GPU) resolution switch.

-- Output buffer need to be reinterpreted as per dimensions
   set through Update_Buffer_Geometry.
-- Do not cache egl images during DRC as it leads to wrong
   stride calculation.

CRs-Fixed: 2595803
Change-Id: Id02153ba8dd7d7ab8861486dc10f9c2e8b515287
11 files changed