Update CHROMIUM_copy_texture.txt to match the code [Overview] The internal format list in the code mismatches the one in the spec txt. see the link below for the missing formats in the spec txt: - http://screen/vDkHo3MFXpE3eQF.png Therefore the CL is matching the spec txt to the code. [Test] CQ DRY RUN completed and passed Bug: angleproject:4228 Change-Id: Ib66fb00b65ce2164779ca7649ec0652910a8e467 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3830892 Reviewed-by: Yuxin Hu <yuxinhu@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>