Don't set user restrictions directly on USER_ALL.

Bug: 269984638

Test: btest a.d.c.InstallUnknownSourcesTest
Change-Id: Id71b1fb3af41afe722d336d33628bc1b222205c8
(cherry picked from commit b2d13e50b4)
Merged-In: Id71b1fb3af41afe722d336d33628bc1b222205c8

services/core/java/com/android/server/pm/UserManagerService.java

@@ -2592,6 +2592,9 @@ public class UserManagerService extends IUserManager.Stub {
 
             applyUserRestrictionsForAllUsersLR();
             for (int i = 0; i < updatedUserIds.size(); i++) {
+                if (updatedUserIds.get(i) == UserHandle.USER_ALL) {
+                    continue;
+                }
                 applyUserRestrictionsLR(updatedUserIds.get(i));
             }
         }