Use only @FlakyTest annotations on FlickerTests

Currently the FlickerTests tests do not work with @FlakyTest annotation, depending instead on @Ignore. Fix dependencies so that it requires only @FlakyTest annotations now.

Test: atest FlickerTests
Change-Id: If762c5d9f9844885fbd998177512decb08dcf125
diff --git a/tests/FlickerTests/Android.bp b/tests/FlickerTests/Android.bp
index 070dacb..5161fba 100644
--- a/tests/FlickerTests/Android.bp
+++ b/tests/FlickerTests/Android.bp
@@ -28,6 +28,7 @@
         "flickerlib",
         "truth-prebuilt",
         "app-helpers-core",
+        "launcher-helper-lib",
         "launcher-aosp-tapl"
     ],
 }