mmc: sunxi: Enable 8bits bus width for sun8i

The sun8i SoCs also have a 8 bits capable MMC2 controller. Enable the
support for those too.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>

drivers/mmc/sunxi_mmc.c

@@ -463,7 +463,7 @@ struct mmc *sunxi_mmc_init(int sdc_no)
 
 	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
 	cfg->host_caps = MMC_MODE_4BIT;
-#ifdef CONFIG_MACH_SUN50I
+#if defined(CONFIG_MACH_SUN50I) || defined(CONFIG_MACH_SUN8I)
 	if (sdc_no == 2)
 		cfg->host_caps = MMC_MODE_8BIT;
 #endif