Update all Velvet.apk to same version 8.91.5.21

This is too ensure a uniform experience across all arch's and to
have same required privapp permissions.
Also added a privapp permission to the whitelist xml that's required
by this new version.

Change-Id: I04abc73565bb02c5d4ad60c5331cabc672fda147

common/proprietary/etc/permissions/privapp-permissions-google.xml

@@ -283,6 +283,7 @@ It allows additional grants on top of privapp-permissions-platform.xml
         <permission name="android.permission.INTERACT_ACROSS_USERS"/>
         <permission name="android.permission.MANAGE_VOICE_KEYPHRASES"/>
         <permission name="android.permission.MEDIA_CONTENT_CONTROL"/>
+        <permission name="android.permission.PACKAGE_USAGE_STATS"/>
         <permission name="android.permission.REAL_GET_TASKS"/>
         <permission name="android.permission.SET_MEDIA_KEY_LISTENER"/>
         <permission name="android.permission.SET_VOLUME_KEY_LONG_PRESS_LISTENER"/>

proprietary-files-arm-nongrouper.txt

@@ -1 +1 @@
--priv-app/Velvet/Velvet.apk;PRESIGNED|6ff0bf464004006754cd333c9d45f471c09b13ce
+-priv-app/Velvet/Velvet.apk;PRESIGNED|1bd57d7a32d77ec007ca7ad8032cca8d9038c555

proprietary-files-arm64-nongrouper.txt

@@ -1 +1 @@
--priv-app/Velvet/Velvet.apk;PRESIGNED|9e5f9cd8cfc7d28aeed9900548225792cc2a066d
+-priv-app/Velvet/Velvet.apk;PRESIGNED|314043242c4253b61d9d4fcf656489d3fa0265be

proprietary-files-common.txt

@@ -15,7 +15,7 @@ etc/default-permissions/default-permissions.xml
 
 etc/permissions/com.google.android.maps.xml
 etc/permissions/com.google.android.dialer.support.xml
-etc/permissions/privapp-permissions-google.xml|2e4c21fc0162907187da9b1cc640699d3a93c565
+etc/permissions/privapp-permissions-google.xml|8295b2743b05191eeb7b1992c02a7a59aba338dd
 
 etc/sysconfig/google-hiddenapi-package-whitelist.xml
 etc/sysconfig/google.xml

proprietary-files-x86-nongrouper.txt

@@ -1 +1 @@
--priv-app/Velvet/Velvet.apk;PRESIGNED|d69d0ca0844fe8d794111fa1d836be85a48208c2
+-priv-app/Velvet/Velvet.apk;PRESIGNED|cd13e9ea9d5b3337b8a22b9ea7939132458cbced