Bump up AOSP contacts to 1.5.4

Bug:28880104
Change-Id: I364d57802b4655422eaf2c1a0375652a4e960169
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 72c6481..ed94546 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -16,8 +16,8 @@
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.contacts"
-    android:versionCode="10503"
-    android:versionName="1.5.3">
+    android:versionCode="10504"
+    android:versionName="1.5.4">
 
     <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="23" />
     <original-package android:name="com.android.contacts" />