Serialize invNormRotation in SkLightingShader.

This fixes a serialize-8888 / 8888 GM mismatch.

This requires a picture bump so we know not to bother trying to read the
invNormRotation vector from older .SKPs.   Any chance no one's ever made
one?

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1870443002

Just bumping the picture version.
TBR=reed@google.com

Review URL: https://codereview.chromium.org/1870443002
5 files changed