add Pixel CPU Test jobs

We lost some coverage here when the Shields died.

We've had the ASAN Test jobs, which is good, but there are
a few code paths that go differently when run under ASAN,
particularly the SkVM JIT.

Change-Id: Ia120e55f16ddd4cd12d8bd78d62a53c7542fec13
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/282318
Auto-Submit: Mike Klein <mtklein@google.com>
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Herb Derby <herb@google.com>
2 files changed