drm/amdgpu: remove unneeded semicolon

No functional modification involved.

./drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c:146:2-3: Unneeded semicolon.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4871Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c

@@ -143,7 +143,7 @@ static void nbio_v7_9_sdma_doorbell_range(struct amdgpu_device *adev, int instan
 		break;
 	default:
 		break;
-	};
+	}
 
 	return;
 }