fbdev: amba: Link fb device to its parent

Some pieces of userspace like debian-installer expect to find the fb0
driver name by readlink-ing /sys/class/graphics/fb0/device/driver but
this was broken with amba-clcd as it sets up fb_info manually and missed
the .device parent pointer.
Signed-off-by: Loïc Minier <loic.minier@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

drivers/video/amba-clcd.c

@@ -447,6 +447,8 @@ static int clcdfb_register(struct clcd_fb *fb)
 		goto out;
 	}
 
+	fb->fb.device		= &fb->dev->dev;
+
 	fb->fb.fix.mmio_start	= fb->dev->res.start;
 	fb->fb.fix.mmio_len	= resource_size(&fb->dev->res);