video: vt8500: Adjust contrast in wm8505 framebuffer driver.

The contrast value was typo'd on the original commit (0x80 instead of
0x08). Following feedback from an enduser, a value of 0x10 seems more
suitable due to the default backlight being <100%.
Signed-off-by: NTony Prisk <linux@prisktech.co.nz>
Reviewed-by: NJean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

drivers/video/wm8505fb.c

@@ -358,7 +358,7 @@ static int wm8505fb_probe(struct platform_device *pdev)
 	fbi->fb.screen_base		= fb_mem_virt;
 	fbi->fb.screen_size		= fb_mem_len;
 
-	fbi->contrast = 0x80;
+	fbi->contrast = 0x10;
 	ret = wm8505fb_set_par(&fbi->fb);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to set parameters\n");