ASoC: Intel: byt-max98090: Move codec sysclk setting to byt_max98090_init()

Codec MCLK is static and thus can be moved to driver init time.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
ASoC: Intel: byt-max98090: Remove needless snd_soc_add_card_controls call

byt_max98090_controls are referenced in snd_soc_card_byt and thus they are
added during snd_soc_instantiate_card() so there is no need to add them in
DAI link init time.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>