[AF] Add inline GPay logo in Android Downstream CVC Prompt

Screenshot with feature enabled:
https://screenshot.googleplex.com/tWdvKkwxU8G

RTL Screenshot with feature enabled:
https://screenshot.googleplex.com/QS1n2b9ytxr

Screenshot with feature disabled:
https://screenshot.googleplex.com/jtp4wPe9Ng1

Change-Id: I56896520e26fe877584850d37a1e3095317910dc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2327835


Reviewed-by: Rouslan Solomakhin <rouslan@chromium.org>
Reviewed-by: Tommy Martino <tmartino@chromium.org>
Reviewed-by: Pavel Yatsuk <pavely@chromium.org>
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Reviewed-by: Siddharth Shah <siashah@chromium.org>
Reviewed-by: Jared Saul <jsaul@google.com>
Commit-Queue: Anne Lim <annelim@google.com>
Cr-Commit-Position: refs/heads/master@{#798340}