ALSA: cmi8330: More constifications

Apply const prefix to the static tables for the register, controls and
callbacks.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-47-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/isa/cmi8330.c

@@ -120,7 +120,7 @@ static int pnp_registered;
 #define CMI8330_LINGAIN   25
 #define CMI8330_CDINGAIN  26
 
-static unsigned char snd_cmi8330_image[((CMI8330_CDINGAIN)-16) + 1] =
+static const unsigned char snd_cmi8330_image[((CMI8330_CDINGAIN)-16) + 1] =
 {
 	0x40,			/* 16 - recording mux (SB-mixer-enabled) */
 #ifdef ENABLE_SB_MIXER
@@ -235,7 +235,7 @@ WSS_SINGLE(SNDRV_CTL_NAME_IEC958("Input ", PLAYBACK, SWITCH), 0,
 };
 
 #ifdef ENABLE_SB_MIXER
-static struct sbmix_elem cmi8330_sb_mixers[] = {
+static const struct sbmix_elem cmi8330_sb_mixers[] = {
 SB_DOUBLE("SB Master Playback Volume", SB_DSP4_MASTER_DEV, (SB_DSP4_MASTER_DEV + 1), 3, 3, 31),
 SB_DOUBLE("Tone Control - Bass", SB_DSP4_BASS_DEV, (SB_DSP4_BASS_DEV + 1), 4, 4, 15),
 SB_DOUBLE("Tone Control - Treble", SB_DSP4_TREBLE_DEV, (SB_DSP4_TREBLE_DEV + 1), 4, 4, 15),
@@ -253,7 +253,7 @@ SB_DOUBLE("SB Playback Volume", SB_DSP4_OGAIN_DEV, (SB_DSP4_OGAIN_DEV + 1), 6, 6
 SB_SINGLE("SB Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1),
 };
 
-static unsigned char cmi8330_sb_init_values[][2] = {
+static const unsigned char cmi8330_sb_init_values[][2] = {
 	{ SB_DSP4_MASTER_DEV + 0, 0 },
 	{ SB_DSP4_MASTER_DEV + 1, 0 },
 	{ SB_DSP4_PCM_DEV + 0, 0 },
@@ -428,7 +428,7 @@ static int snd_cmi8330_pcm(struct snd_card *card, struct snd_cmi8330 *chip)
 	struct snd_pcm *pcm;
 	const struct snd_pcm_ops *ops;
 	int err;
-	static snd_pcm_open_callback_t cmi_open_callbacks[2] = {
+	static const snd_pcm_open_callback_t cmi_open_callbacks[2] = {
 		snd_cmi8330_playback_open,
 		snd_cmi8330_capture_open
 	};