Format code according to linter rules after moving it into different packages

Bug: 307885357
Test: atest WMShellFlickerTestsPip1 WMShellFlickerTestsPip2 WMShellFlickerTestsSplitScreenGroup1 WMShellFlickerTestsSplitScreenGroup2 WMShellFlickerTestsService WMShellFlickerTestsBubbles WMShellFlickerTestsPlatinum
Change-Id: If0ad19b78872e0e7152c3a71736820276446be60
22 files changed