SUW - Apply theme to FRP PIN pages

It is safe to always attempt to copy SUW intent extras, as they will
only be applied if they exist.

Fixes: 171950236
Fixes: 181212237
Fixes: 183711331
Test: SUW FRP verify, settings confirm existing PIN
Change-Id: I6d35683abdc864aea7b1ed0190d6776a75b3e116