surfaceflinger: respect install orientation in DisplayRenderArea

DisplayRenderArea getTransform takes install orientation into
consideration.  Fix getSourceCrop and getRotationFlags to respect
install orientation as well.

This results in some changes

 - source crop is no longer rotated by install orientation for
   LayerRenderArea
 - rotation flags is no longer rotated by install orientation for
   LayerRenderArea
 - source crop is no longer set to getBounds by default for
   LayerRenderArea (it is already done in captureLayers)
 - source crop is always rotated by install orientation for
   DisplayRenderArea

AFAICT, all the changes are actually fixes.  Quickly verified by
forcing primaryDisplayOrientation to DisplayState::eOrientation90.

Bug: 113041375
Test: take screenshot, rotate screen, screencap
Change-Id: If19df222ae52f6b276f9b0572e7b9bec872e3ae4
Merged-In: If19df222ae52f6b276f9b0572e7b9bec872e3ae4