Add KeyguardCoordinatorTest cases

Also includes code cleanup and formatting to keep in sync with master

Fixes: 224771204
Test: atest KeyguardCoordinatorTest
Change-Id: I25b1e5fefe6d7a8bf9a4b2be95c7b06fe5d7dd9b
Merged-In: I25b1e5fefe6d7a8bf9a4b2be95c7b06fe5d7dd9b
9 files changed