[Catalyst] Create new flag for migrating Vibration & haptics page

The existing flag covered the screen initial migration and the main
switch, this new one will cover the migration of all other vibration
intensity slider and toggles in the page.

Bug: 390338213
Change-Id: Ice3adb33758127974a568524f3cd136fe61b22be
Test: N/A
Flag: com.android.settings.flags.catalyst_vibration_screen

aconfig/catalyst/sound_screen.aconfig

@@ -13,4 +13,11 @@ flag {
     namespace: "android_settings"
     description: "Flag for vibration and haptics page"
     bug: "323791114"
+}
+
+flag {
+    name: "catalyst_vibration_screen"
+    namespace: "android_settings"
+    description: "Flag for vibration and haptics full page migration"
+    bug: "323791114"
 }