drm/amdgpu: Fix a typo ("boradcast")

Spell it as "broadcast".
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/df_v1_7.c

@@ -94,7 +94,7 @@ static void df_v1_7_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 		WREG32_SOC15(DF, 0, mmDF_PIE_AON0_DfGlobalClkGater, tmp);
 	}
 
-	/* Exit boradcast mode */
+	/* Exit broadcast mode */
 	adev->df.funcs->enable_broadcast_mode(adev, false);
 }