Fix WallpaperPicker2 preview info text low contrast am: 6503f87d45

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/WallpaperPicker2/+/20073342

Change-Id: Ia48ec9eebe8212ef5da9933b1451059cbf879cf4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>