ASoC: rt5665: constify acpi_device_id.

acpi_device_id are not supposed to change at runtime. All functions
working with acpi_device_id provided by <acpi/acpi_bus.h> work with
const acpi_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5665.c

@@ -4970,7 +4970,7 @@ MODULE_DEVICE_TABLE(of, rt5665_of_match);
 #endif
 
 #ifdef CONFIG_ACPI
-static struct acpi_device_id rt5665_acpi_match[] = {
+static const struct acpi_device_id rt5665_acpi_match[] = {
 	{"10EC5665", 0,},
 	{"10EC5666", 0,},
 	{"10EC5668", 0,},