Fix default scale value

This could make the burn in layer look invisible b/c
the scale was zero.

Fixes: 329398010
Test: atest KeyguardRootViewModelTest
Flag: ACONFIG com.android.systemui.migrate_clocks_to_blueprint
TEAMFOOD

Change-Id: I4ca4039f37f93b1519561fb27a1d8ccc6c3944c3
3 files changed