mv BackendTextureData to end of parameter list

This is split out the parameter reordering CL - which has become too large

Change-Id: I2574985bff3cc6e9825a45a92ac531f00c33e28d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/265578
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
13 files changed