Bug 1517053 - Enable power tests for Android hardware, r=jmaher.

taskcluster/ci/test/raptor.yml

@@ -338,7 +338,7 @@ raptor-speedometer-geckoview-power:
     target: geckoview_example.apk
     run-on-projects:
         by-test-platform:
-            android-hw.*: ['try']
+            android-hw.*: ['try', 'mozilla-central']
     max-run-time: 1800
     mozharness:
         extra-options: