[ALSA] ca0106: replaced control add sequences with macro

Turn a rather long lined for loop that is duplicated multiple times into a
macro.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>