Adding a permission to Shell to enable testing

Adding SCHEDULE_PRIORITIZED_ALARM permission to Shell so the API can be
called from tests.

Test: Builds, boots.
atest CtsAlarmManagerTestCases:BasicApiTests

Bug: 183661625
Change-Id: I983b0d9d7a5ab417e74feae9dadf4d472d277b20
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index cff8ad1..dba77e2 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -447,6 +447,9 @@
     <!-- Permission required for CTS test - android.widget.cts.ToastTest -->
     <uses-permission android:name="android.permission.UNLIMITED_TOASTS" />
 
+    <!-- Permission required for CTS test - CtsAlarmManagerTestCases -->
+    <uses-permission android:name="android.permission.SCHEDULE_PRIORITIZED_ALARM" />
+
     <application android:label="@string/app_label"
                 android:theme="@android:style/Theme.DeviceDefault.DayNight"
                 android:defaultToDeviceProtectedStorage="true"