ALSA: hda - Add fixup-call in init callback

In some cases, the fix-up is required in the init callback to be called
both at the first initialization and at the resume.  The new action type
ALC_FIXUP_ACT_INIT is used for this case.

So far, only ALC275_FIXUP_SONY_HWEQ uses this.

Signed-off-by: Takashi Iwai <tiwai@suse.de>