drm/amd/pm: Fix comment style

Fix code comment style

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202504271422.D6cqMlZ0-lkp@intel.com/
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c

@@ -1347,7 +1347,7 @@ static int arcturus_get_power_limit(struct smu_context *smu,
 		*default_power_limit = power_limit;
 	if (max_power_limit)
 		*max_power_limit = power_limit;
-	/**
+	/*
 	 * No lower bound is imposed on the limit. Any unreasonable limit set
 	 * will result in frequent throttling.
 	 */