ALSA: aoa: More constifications

Apply const prefix at every place where appropriate: the static
register tables, the volume tables and the callback tables.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Takashi Iwai <[e-mail]>

sound/aoa/codecs/onyx.c

···
 
 /* our registers */
 
-static u8 register_map[] = {
+static const u8 register_map[] = {
 	ONYX_REG_DAC_ATTEN_LEFT,
 	ONYX_REG_DAC_ATTEN_RIGHT,
 	ONYX_REG_CONTROL,
···
 	ONYX_REG_DIG_INFO4
 };
 
-static u8 initial_values[ARRAY_SIZE(register_map)] = {
+static const u8 initial_values[ARRAY_SIZE(register_map)] = {
 	0x80, 0x80, /* muted */
 	ONYX_MRST | ONYX_SRST, /* but handled specially! */
 	ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT,

sound/aoa/codecs/tas-basstreble.h

···
 #define TAS3004_TREBLE_ZERO	36
 #define TAS3004_BASS_ZERO	36
 
-static u8 tas3004_treble_table[] = {
+static const u8 tas3004_treble_table[] = {
 	150, /* -18 dB */
 	149,
 	148,
···
  * I have also ignored completely differences of
  * +/- 1
  */
-static s8 tas3004_bass_diff_to_treble[] = {
+static const s8 tas3004_bass_diff_to_treble[] = {
 	2, /* 7 dB, offset 50 */
 	2,
 	2,

sound/aoa/codecs/tas-gain-table.h

···
  * as easy as calculating
  *      hwvalue = 1048576.0*exp(0.057564628*dB*2)
  * :) */
-static int tas_gaintable[] = {
+static const int tas_gaintable[] = {
 	0x000000, /* -infinity dB */
 	0x00014b, /* -70.0 dB */
 	0x00015f, /* -69.5 dB */

sound/aoa/soundbus/i2sbus/core.c

···
 	static const char *rnames[] = { "i2sbus: %pOFn (control)",
 					"i2sbus: %pOFn (tx)",
 					"i2sbus: %pOFn (rx)" };
-	static irq_handler_t ints[] = {
+	static const irq_handler_t ints[] = {
 		i2sbus_bus_intr,
 		i2sbus_tx_intr,
 		i2sbus_rx_intr