[nobuildbot] Explicitly name all jobs

This makes it clearer which jobs we're running when looking at
gen_tasks.go.  Doesn't actually change any behavior.

BUG=skia:

Change-Id: Ie4fe639552bd673d3a605e03782a68b5e013cf1d
Reviewed-on: https://skia-review.googlesource.com/4990
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Eric Boren <borenet@google.com>
1 file changed