Don't tint smart actions in shelf UI

Adds a parameter to the ActionButtonAppearance to allow disabling
tinting of action button icons.

Bug: 339598339
Bug: 339757074
Test: manual (visual change)
Flag: ACONFIG com.android.systemui.screenshot_shelf_ui2 TEAMFOOD
Change-Id: I266cebb06815f3ea169a68998d177b14c1440649