sunxi: Add support for Mele M5.

HDMI, SATA, USB and Ethernet appear functional, I've not done extensive tests
of all peripherals though.

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

board/sunxi/MAINTAINERS

@@ -94,3 +94,8 @@ MARSBOARD-A10 BOARD
 M:	Aleksei Mamlin <mamlinav@gmail.com>
 S:	Maintained
 F:	configs/Marsboard_A10_defconfig
+
+MELE M5 BOARD
+M:	Ian Campbell <ijc@hellion.org.uk>
+S:	Maintained
+F:	configs/Mele_M5_defconfig

configs/Mele_M5_defconfig

+CONFIG_SPL=y
+CONFIG_SYS_EXTRA_OPTIONS="SUNXI_GMAC,AHCI,USB_EHCI,STATUSLED=234"
+CONFIG_FDTFILE="sun7i-a20-m5.dtb"
+CONFIG_VIDEO_HDMI=y
++S:CONFIG_MMC0_CD_PIN="PH1"
++S:CONFIG_USB1_VBUS_PIN="PH6"
++S:CONFIG_USB2_VBUS_PIN="PH3"
++S:CONFIG_ARM=y
++S:CONFIG_ARCH_SUNXI=y
++S:CONFIG_MACH_SUN7I=y
++S:CONFIG_DRAM_CLK=432
++S:CONFIG_DRAM_ZQ=122
++S:CONFIG_DRAM_EMR1=4