Use default color when artwork is too small

Fixes: 175833333
Test: atest SystemUITests:MediaDataManagerTest
Change-Id: I12e0bd8c32f3f5f824f83312d4b3b3cf181fd486
(cherry picked from commit 8d15cc48fb51e359d7c7296be19d4c1ac212a3b9)
2 files changed