ALSA: hda: cs35l41: Constify regmap_irq_chip

Static 'struct regmap_irq_chip' is not modified so can be changed to
const for more safety.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

Author: krzk

sound/pci/hda/cs35l41_hda.c

@@ -1603,7 +1603,7 @@ static const struct regmap_irq cs35l41_reg_irqs[] = {
 	CS35L41_REG_IRQ(IRQ1_STATUS1, AMP_SHORT_ERR),
 };
 
-static struct regmap_irq_chip cs35l41_regmap_irq_chip = {
+static const struct regmap_irq_chip cs35l41_regmap_irq_chip = {
 	.name = "cs35l41 IRQ1 Controller",
 	.status_base = CS35L41_IRQ1_STATUS1,
 	.mask_base = CS35L41_IRQ1_MASK1,