Fix a11y class name in QSTileState

Make a11y class name api more straightforward in QSTileState.Builder to
force qualified name to be provided.

Test: manual
Flag: LEGACY QS_PIPELINE_NEW_TILES DISABLED
Fixes: 299908705
Change-Id: Ibcd843729b1641c17fdc34088493c0dd690e89ba
2 files changed