Add @TestApi to createLaunchEmergencyDialerIntent

Test: build
Bug: 154867896
Change-Id: Id2eb94b233c6c00a81c51d17c5414b3cce5ebdf5
diff --git a/telecomm/java/android/telecom/TelecomManager.java b/telecomm/java/android/telecom/TelecomManager.java
index 0983db6..eb553d3 100644
--- a/telecomm/java/android/telecom/TelecomManager.java
+++ b/telecomm/java/android/telecom/TelecomManager.java
@@ -2215,6 +2215,7 @@
      * @hide
      */
     @SystemApi
+    @TestApi
     @NonNull
     public Intent createLaunchEmergencyDialerIntent(@Nullable String number) {
         ITelecomService service = getTelecomService();