Convert SysUiState flags from int to long

We already reached the limit of 32 flags for an int. To be able to have
more, changing from int to long.

This is needed, as new flags have to be added.

Flag: NONE
Test: Manually running SysUI and Launcher
Test: Unit tests in CL
Bug: 335625543
Change-Id: I80ce1dad26ceb1afaa5b7030bbfc4e2ddfb1b146