ASoC: ssm2518: Use modern ASoC DAI format terminology

As part of moving to remove the old style defines for the bus clocks update
the ssm2518 driver to use more modern terminology for clocking.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220602130531.3552275-2-broonie@kernel.org


Signed-off-by: Mark Brown <broonie@kernel.org>