Shell: Allow usage of wifi usability score APIs

This permission is needed for wifi CTS tests.

Is the minimally scoped permission that needs to be added?
- Yes, this only allows the app to influnce wifi vs lte network
selection algorithm.

What options did you explore that did not need this permission?
- Without this permission, it would be impossible to test these API's:
WifiManager.setWifiConnectedNetworkScorer()
WifiManager.clearWifiConnectedNetworkScorer()
WifiManager.clearWifiConnectedNetworkScorer()
WifiManager.addOnWifiUsabilityStatsListener()

Bug: 150236894
Test: Device boots up.
Change-Id: Ic173e44ab818cdfecebde80715ddaec347019db6
Merged-In: Ic173e44ab818cdfecebde80715ddaec347019db6
diff --git a/data/etc/privapp-permissions-platform.xml b/data/etc/privapp-permissions-platform.xml
index 8a25914..a1c8e13 100644
--- a/data/etc/privapp-permissions-platform.xml
+++ b/data/etc/privapp-permissions-platform.xml
@@ -328,6 +328,7 @@
         <permission name="android.permission.SUSPEND_APPS" />
         <permission name="android.permission.UPDATE_APP_OPS_STATS"/>
         <permission name="android.permission.USE_RESERVED_DISK"/>
+        <permission name="android.permission.WIFI_UPDATE_USABILITY_STATS_SCORE"/>
         <permission name="android.permission.WRITE_MEDIA_STORAGE"/>
         <permission name="android.permission.WRITE_SECURE_SETTINGS"/>
         <permission name="android.permission.STATUS_BAR_SERVICE"/>
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index d1d080c..ff91c79 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -241,6 +241,9 @@
     <!-- Permission needed to read wifi network credentials for CtsNetTestCases -->
     <uses-permission android:name="android.permission.READ_WIFI_CREDENTIAL" />
 
+    <!-- Permission needed to use wifi usability API's for CtsNetTestCases -->
+    <uses-permission android:name="android.permission.WIFI_UPDATE_USABILITY_STATS_SCORE" />
+
     <!-- Permission required for testing system audio effect APIs. -->
     <uses-permission android:name="android.permission.MODIFY_DEFAULT_AUDIO_EFFECTS"/>