Add cr_ prefix to new functions come in with libpng update

Same as issue fixed in below change, some new functions come in with the
update of libpng to 1.6.37 which needs chromium specific prefix to avoid
symbol duplication for linking.

https://chromium-review.googlesource.com/c/chromium/src/+/1476170

Bug: 893460
Change-Id: Icb769eac5d9c541c9badd1ba9e8ec9da3e4697d1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1595559
Reviewed-by: Leon Scroggins <scroggo@chromium.org>
Commit-Queue: Tom Tan <Tom.Tan@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#656985}
NOKEYCHECK=True
GitOrigin-RevId: 6bfda452ee3dd747e3baa61b04a18e24de872449
1 file changed