sunxi: add mmc support
 - add MMC support for sun457i
 - update kernel config to compile in MMC and ext4
 - update kernel cmdline

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39189 3c298f89-4303-0410-b956-a3cf2f4a3e73
sunxi: add support for pcDuino board

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39190 3c298f89-4303-0410-b956-a3cf2f4a3e73
[uboot-sunxi]: update version

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39191 3c298f89-4303-0410-b956-a3cf2f4a3e73
[uboot-sunxi]: add support for pcDuino board

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39192 3c298f89-4303-0410-b956-a3cf2f4a3e73