Update Wuffs version

Also re-write some C "designated initializer" expressions in
SkWuffsCodec.cpp. They may be valid C (C99), but are not necessarily
valid C++. Even though GCC and Clang extends C++ to accept them,
Microsoft Visual C++ does not.

This pulls in the Wuffs bug fix:
https://github.com/google/wuffs/commit/c4b8a6a4cc4bb833d4414018e2a6a1967af51bca
"Don't use designated initializers".

Bug: skia:8235
Bug: skia:8764
Change-Id: I57be56ce0b7f5bc1eb38ecc113a9b7ad7d2e373b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/199440
Reviewed-by: Leon Scroggins <scroggo@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
2 files changed