Merge cherrypicks of [17008934] into rvc-platform-release.

Change-Id: Ia5e72a6ba6b6ec57b61be711abd2b09de22e3de5
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 012b924..f4e5f6b 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -557,6 +557,7 @@
         <activity
             android:name="com.android.contacts.dialog.CallSubjectDialog"
             android:theme="@style/Theme.CallSubjectDialogTheme"
+            android:exported="false"
             android:windowSoftInputMode="stateVisible|adjustResize">
             <intent-filter>
                 <action android:name="android.intent.action.VIEW"/>