Avoid GL_RED/GL_UNSIGNED_BYTE on PowerVR SGX 54x

Bug: https://github.com/flutter/flutter/issues/71315

Change-Id: I36fe76a1f6347a2d219095118a1f5e593db4ff5d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/394159
Commit-Queue: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2 files changed