arch/x86: Change power_res_dev_states[] to be static const * const

This change makes power_res_dev_states[] to be static const * const as
complained by Jenkins.

BUG=b:155428745

Change-Id: Ice2fff6ab3bcd72a059bc905b7462a681f2e6aaf
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40935
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c
index 34de2ba..dfc2a5a 100644
--- a/src/arch/x86/acpigen.c
+++ b/src/arch/x86/acpigen.c
@@ -1147,7 +1147,7 @@
  * PowerResource (name, level, order)
  */
 void acpigen_write_power_res(const char *name, uint8_t level, uint16_t order,
-			     const char *dev_states[], size_t dev_states_count)
+			     const char * const dev_states[], size_t dev_states_count)
 {
 	size_t i;
 	for (i = 0; i < dev_states_count; i++) {