When decided whether to use transfer or the draw path to perform
an image to image copy make sure to account for compatibility in
tiling modes.

Bug: angleproject:4743
Change-Id: I757aab0ac8628f08092dc2dfc39f06d112db5089
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2246527
Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>