Tests: re-sort gni, file name convention

Change-Id: I47c4b91805770bd68101e1503a8630243ef16c21
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/212022
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Herb Derby <herb@google.com>
Auto-Submit: Hal Canary <halcanary@google.com>
9 files changed