pkg(motorola): update com.motorola.setup removal level and description

- Change removal level from Advanced to Expert
- Update description to emphasize security patch implications
- Clarify that freezing breaks Google Play System Updates (Project Mainline)
- Add clear warning about security patch impact

Closes #1412

resources/assets/uad_lists.json

@@ -4371,11 +4371,11 @@
   },
   "com.motorola.setup": {
     "list": "Oem",
-    "description": "Related to Motorola Account setup (only during first boot ?)\nWARNING: Removing this package breaks Google Play System Updates. Appears to be tied to Google's Play Store update mechanism on Motorola devices\n",
+    "description": "Related to Motorola Account setup (only during first boot?) DO NOT REMOVE unless you don't care about security patches. Freezing this package completely halts Google Play System Updates (Project Mainline), preventing the device from receiving security fixes.",
     "dependencies": [],
     "neededBy": [],
     "labels": [],
-    "removal": "Advanced"
+    "removal": "Expert"
   },
   "com.motorola.slpc_sys": {
     "list": "Oem",