Changing CAR_MONITOR_INPUT protection to signature|privileged

Fixes: 186676333
Test: atest CarServiceUnitTest
Test: atest CtsCarTestCases
Test: atest CarServiceTest
Test: atest AndroidCarApiTest
Test: atest CarSecurityPermissionTest
Change-Id: I0380f7f06026378bac8f2c9ce8f94d7ab9bee0bd
diff --git a/service/AndroidManifest.xml b/service/AndroidManifest.xml
index 8f90480..d3724dd 100644
--- a/service/AndroidManifest.xml
+++ b/service/AndroidManifest.xml
@@ -859,10 +859,10 @@
          android:description="@string/car_permission_desc_set_car_vendor_category_10"/>
 
     <!-- Allows an application to receive Car input events.
-         <p>Protection level: signature
+         <p>Protection level: signature|privileged
     -->
     <permission android:name="android.car.permission.CAR_MONITOR_INPUT"
-                android:protectionLevel="signature"
+                android:protectionLevel="signature|privileged"
                 android:label="@string/car_permission_label_monitor_input"
                 android:description="@string/car_permission_desc_monitor_input"/>