Check for wallpaper service on DozeWallpaperState.

It's disabled by default on automotive builds.

Bug: 146157808
Test: check logcat while running 'adb shell dumpsys car_service suspend'

Change-Id: Ifb0815f260d61bb8307f4b7c7798d9a5684d0d20
(cherry picked from commit 6844c394fbb6e0170f893de58520a73fabaa1229)