Fix PixelCopy & BQ crop

Change Surface to return the original crop rect + transform int instead
of a matrix in GL's bottom-left origin in 0..1 space. This avoids doing
an extreme amount of matrix pulling apart to try and guess at the inputs
and map rects around to make it maybe work sometimes along with avoiding
the need to convert that matrix into skia's top-left non-unit space.

This also opens the door to avoiding the 1 texel crop problem if
ASurfaceTexture is similarly adjusted to return the crop+transform
instead of a float[16] matrix as we are using a proper srcRect to
sample from instead of purely done via matrix manipulation. This CL
continues to pass kFast_SrcRectConstraint so we don't actually
benefit but it at least COULD.

Fixes: 183553027
Test: atest android.view.cts.PixelCopyTest (+new testBufferQueueCrop)
Change-Id: I5f638153baed7f67dc43fe9ecb4587f579222b5d