Add missing transitive dependencies

Add android-support-v4 needed by android-support-v7-appcompat

Test: builds
Change-Id: Ia8db50b8978903c220fedb527bbbf3359105a0f7
diff --git a/security/FingerprintDialog/Application/src/main/Android.mk b/security/FingerprintDialog/Application/src/main/Android.mk
index 1b020d9..4bb3b0f 100644
--- a/security/FingerprintDialog/Application/src/main/Android.mk
+++ b/security/FingerprintDialog/Application/src/main/Android.mk
@@ -14,7 +14,9 @@
 
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
-LOCAL_STATIC_JAVA_LIBRARIES := android-support-v7-appcompat \
+LOCAL_STATIC_JAVA_LIBRARIES := \
+    android-support-v7-appcompat \
+    android-support-v4 \
     android-support-annotations
 LOCAL_MODULE_TAGS := samples
 LOCAL_SRC_FILES := $(call all-subdir-java-files)