fatcatrvp: Add v0.44.3 for single and dual port Realtek

Update the dual-port firmware (GOOG0400) to the new filename convention.
Add the single-port firmware file.

BUG=b:446939796
TEST=none

Change-Id: I737a2d664e70776dd7b19c739e1b18fa1b276eb4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/pdc/+/7009045
Tested-by: Keith Short <keithshort@chromium.org>
Commit-Queue: Keith Short <keithshort@chromium.org>
Reviewed-by: caveh jalali <caveh@chromium.org>