Grant shell QUERY_USERS and MODIFY_QUIET_MODE

Added a new permission QUERY_USERS, granted the
new permission and MODIFY_USERS to shell.
These permissions are required to enable CTS
tests to access the following APIs:
* UserManager#getUsers and any other API that depend on it
* UserManager#getProfileParent
* UserManager#requestQuietModeEnabled

Test: Confirmed that a CTS test can call these APIs
Bug: 178695365
Change-Id: Ifa14d24ee1873161e3986e8d0669fd47a7bcaa7a
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 1af7781..eab0990 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -122,6 +122,8 @@
     <uses-permission android:name="android.permission.MANAGE_CREDENTIAL_MANAGEMENT_APP" />
     <uses-permission android:name="android.permission.MANAGE_DEVICE_ADMINS" />
     <uses-permission android:name="android.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS" />
+    <uses-permission android:name="android.permission.QUERY_USERS" />
+    <uses-permission android:name="android.permission.MODIFY_QUIET_MODE" />
     <uses-permission android:name="android.permission.ACCESS_LOWPAN_STATE"/>
     <uses-permission android:name="android.permission.CHANGE_LOWPAN_STATE"/>
     <uses-permission android:name="android.permission.READ_LOWPAN_CREDENTIAL"/>