ASoC: Intel: Move Baytrail firmware info prints to sst_byt_dsp_init

This is easiest way to print DSP firmware information only once without
adding any conditional flags: Move printing to sst_byt_dsp_init() after
waiting that DSP has booted up successfully.

At that point we know that IPC_IA_FW_INIT_CMPLT arrived and mailbox has
struct sst_byt_fw_init message. This code path is executed only during
driver initialization time and firmware details are not printed anymore
during resume.

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