drm/i915: constify pointers to hwmon_channel_info

Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230511175446.282041-1-krzysztof.kozlowski@linaro.org

drivers/gpu/drm/i915/i915_hwmon.c

@@ -267,7 +267,7 @@ static const struct attribute_group *hwm_groups[] = {
 	NULL
 };
 
-static const struct hwmon_channel_info *hwm_info[] = {
+static const struct hwmon_channel_info * const hwm_info[] = {
 	HWMON_CHANNEL_INFO(in, HWMON_I_INPUT),
 	HWMON_CHANNEL_INFO(power, HWMON_P_MAX | HWMON_P_RATED_MAX | HWMON_P_CRIT),
 	HWMON_CHANNEL_INFO(energy, HWMON_E_INPUT),
@@ -275,7 +275,7 @@ static const struct hwmon_channel_info *hwm_info[] = {
 	NULL
 };
 
-static const struct hwmon_channel_info *hwm_gt_info[] = {
+static const struct hwmon_channel_info * const hwm_gt_info[] = {
 	HWMON_CHANNEL_INFO(energy, HWMON_E_INPUT),
 	NULL
 };