Add CHS Permissions to Pixel 2

Activity Recognition is needed specifically for the Smart PNO Scanning
feature that is being ported to Pixel 2, Smart OOS Scanning is not being
ported so I removed it from the comment.

Bug: 143223240
Test: Local
Change-Id: Iedc9177ac49fb188183bca992e7d0a106df1cf57
diff --git a/default-permissions.xml b/default-permissions.xml
index 695da91..b64420e 100644
--- a/default-permissions.xml
+++ b/default-permissions.xml
@@ -139,5 +139,10 @@
         <permission name="android.permission.RECEIVE_MMS" fixed="false"/>
         <permission name="android.permission.WRITE_CALL_LOG" fixed="false"/>
         <permission name="android.permission.ACCESS_COARSE_LOCATION" fixed="false"/>
+      </exception>
+
+    <exception package="com.google.android.apps.scone">
+        <!-- Used to call ActivityTransition API for Smart PNO -->
+        <permission name="android.permission.ACTIVITY_RECOGNITION" fixed="false"/>
     </exception>
 </exceptions>