media: em28xx: Set GPIOs for non-audio boards when switching input

Fixes changing the Line Out audio source with the video input
on MyGica UTV3 board. Previously, GPIOs were only set in
em28xx_set_audio_source(), which only boards with USB audio
support reach.
Signed-off-by: Nils Rothaug <nils.rothaug@gmx.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/usb/em28xx/em28xx-core.c

@@ -416,8 +416,9 @@ int em28xx_audio_analog_set(struct em28xx *dev)
 	int ret, i;
 	u8 xclk;
 
+	/* Set GPIOs here for boards without audio */
 	if (dev->int_audio_type == EM28XX_INT_AUDIO_NONE)
-		return 0;
+		return em28xx_gpio_set(dev, INPUT(dev->ctl_input)->gpio);
 
 	/*
 	 * It is assumed that all devices use master volume for output.