drm/amd/pp: fix semicolon.cocci warnings

drivers/gpu/drm/amd/amdgpu/../powerplay/amd_powerplay.c:1209:17-18: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

Fixes: ea870e44 ("drm/amd/pp: Export notify_smu_enable_pwe to display")
CC: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/amd_powerplay.c

@@ -1206,7 +1206,7 @@ static int pp_notify_smu_enable_pwe(void *handle)
 	struct pp_hwmgr *hwmgr = handle;
 
 	if (!hwmgr || !hwmgr->pm_en)
-		return -EINVAL;;
+		return -EINVAL;
 
 	if (hwmgr->hwmgr_func->smus_notify_pwe == NULL) {
 		pr_info("%s was not implemented.\n", __func__);