For the wallet card & icon, only allow the drawable be loaded from bitmap.

Test: manual
Bug: 366403307
Flag: EXEMPT bugfix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:eb5a9b8a829dace87d592c0d1c0b29f2dfc49fc0)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:827947591b53a3aef1a7aa27e0571bed31f8fe05)
Merged-In: I0033f6ba7ce7f9b9d592e7ce44e63ba804ceb348
Change-Id: I0033f6ba7ce7f9b9d592e7ce44e63ba804ceb348