update gm expectations for Nexus 10

the Android version was updated, introducing a new GPU driver

NOTREECHECKS=true
NOTRY=true
R=bsalomon@google.com
TBR=bsalomon
BUG=skia:2860

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/496733002
2 files changed