Recognizing running "prebuilt" launcher and manually built platform

In scenarios like: atest NexusLauncherOutOfProcTests against the
platform built from command line, and Launcher from the platform, we are
not failing now, and @Stability treats it as a PLATFORM_POSTSUBMIT run.

Change-Id: Ia504216d238e58b2786f3749b737dfb95a2ede96
diff --git a/tests/src/com/android/launcher3/util/rule/TestStabilityRule.java b/tests/src/com/android/launcher3/util/rule/TestStabilityRule.java
index f98957e..59cc4f4 100644
--- a/tests/src/com/android/launcher3/util/rule/TestStabilityRule.java
+++ b/tests/src/com/android/launcher3/util/rule/TestStabilityRule.java
@@ -148,7 +148,8 @@
             Log.d(TAG, "PLATFORM PRESUBMIT");
             runFlavor = PLATFORM_PRESUBMIT;
         } else if (launcherBuildMatcher.group("platform") != null
-                && platformBuildMatcher.group("postsubmit") != null) {
+                && (platformBuildMatcher.group("postsubmit") != null
+                || platformBuildMatcher.group("commandLine") != null)) {
             Log.d(TAG, "PLATFORM POSTSUBMIT");
             runFlavor = PLATFORM_POSTSUBMIT;
         } else {