device: support PPPS in parallel with the driver's USB control

Don't make PPPS path exclusive to the driver USB control. Allow both to
be used at the same time in case the setup uses both PPPS-hubs and
driver-specific control.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Author: Dmitry Baryshkov

device.c

@@ -285,7 +285,7 @@ void device_usb(struct device *device, bool on)
 {
 	if (device->ppps_path)
 		ppps_power(device, on);
-	else if (device_has_control(device, usb))
+	if (device_has_control(device, usb))
 		device_control(device, usb, on);
 }