This change update the WalletScreenController to only show payment cards on lock screen
carousel, maintaining the current behavior.
Context: We have an API change landing in U to support more card types for WalletCard (types shown at cs/android-internal/frameworks/base/core/java/android/service/quickaccesswallet/WalletCard.java;l=89?q=walletcard.java). This change ensures default behavior stays the same regarding only payment cards being shown on carousel.
Bug: b/268521874
Test: atest WalletScreenControllerTest.java

Change-Id: Ibd09e3c7eea07f2605fea7e0c532815078731425