platform_GesturesRegressionTest: add spring

Also use mapping dictionary instead of several 'if' statements for platform name.

BUG=none
TEST=run_remote_tests --remote=xxx platform_GesturesRegressionTest on spring

Change-Id: I9c30a17add00d29276a77d5e7f07236bc3897538
Reviewed-on: https://gerrit.chromium.org/gerrit/51268
Reviewed-by: Joseph Shyh-In Hwang <josephsih@chromium.org>
Commit-Queue: Chung-yih Wang <cywang@chromium.org>
Tested-by: Chung-yih Wang <cywang@chromium.org>
1 file changed