ASoC: ab8500: Update to modern clocking terminology

As part of moving to remove the old style defines for the bus clocks update
the ab8500 driver to use more modern terminology for clocking.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210916141335.43818-1-broonie@kernel.org


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