Add PERFORM_IMS_SINGLE_REGISTRATION to cts manifest

Test: Ran permissions tests
Bug: 173652571
Change-Id: I29e54e94f04483d54262489e8f1d6f54bf5a4290
diff --git a/tests/tests/permission2/res/raw/android_manifest.xml b/tests/tests/permission2/res/raw/android_manifest.xml
index abd3f9c..d34e163 100644
--- a/tests/tests/permission2/res/raw/android_manifest.xml
+++ b/tests/tests/permission2/res/raw/android_manifest.xml
@@ -1046,6 +1046,14 @@
         android:description="@string/permdesc_accessImsCallService"
         android:protectionLevel="signature|privileged" />
 
+    <!-- @SystemApi @hide Allows an application to perform IMS Single Registration related actions.
+         Only granted if the application is a system app AND is in the Default SMS Role.
+         The permission is revoked when the app is taken out of the Default SMS Role.
+        <p>Protection level: internal|role
+    -->
+    <permission android:name="android.permission.PERFORM_IMS_SINGLE_REGISTRATION"
+        android:protectionLevel="internal|role" />
+
     <!-- Allows an application to read the user's call log.
          <p class="note"><strong>Note:</strong> If your app uses the
          {@link #READ_CONTACTS} permission and <em>both</em> your <a