Now Playing is too low on the lock screen

NOTE: on udfps devices while now playing + on pixel stand 2, and max density, there remains overlapping related to the assistant icon.

Test: manually test UI on Pixel Stand 2
Test: manually test UI by pushing song to NowPlaying via adb
Test: manually test on devices both with and without udfps, on large screen density and low density
Fixes: 230466568

9761c10a

Change-Id: I3c67e92d5d9076938c55852898d80903de1d0202