Add application launch category.

Bug: 5674723
Change-Id: Icd743cbd6a424fe219c82db3a80c98738e095133
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 3db7265..56707b7 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -57,6 +57,7 @@
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.APP_CALENDAR" />
             </intent-filter>
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />