Fix auto generated test names for WMShellFlickerTestsDesktopMode tests

Context: go/wm-infra-optimize

Fixes: 311643481
Flag: EXEMPT Test only
Test: atest WMShellFlickerTestsDesktopMode
Change-Id: Id5d1ff39f7ef6aa831eaaa90b182e729e6e87be4
2 files changed