nouveau/gsp: free acpi object after use

This fixes a memory leak for the acpi dod object.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231222043308.3090089-5-airlied@gmail.com

drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c

@@ -1226,6 +1226,7 @@ r535_gsp_acpi_dod(acpi_handle handle, DOD_METHOD_DATA *dod)
 	}
 
 	dod->status = 0;
+	kfree(output.pointer);
 }
 #endif