Adding Merrii Hummingbird A20 to WIP section as user request

config/boards/hummingbird.wip

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+# A20 dual core 1Gb SoC Wifi
+BOARD_NAME="Merrii Hummingbird"
+LINUXFAMILY="sun7i"
+BOOTCONFIG="Merrii_Hummingbird_A20_defconfig"
+MODULES="hci_uart gpio_sunxi rfcomm hidp sunxi-ir bonding spi_sun7i ap6210"
+MODULES_NEXT="brcmfmac rfcomm hidp bonding"
+CLI_TARGET=""
+DESKTOP_TARGET=""
+KERNEL_TARGET="default,next,dev"
+#
+CLI_BETA_TARGET=""
+DESKTOP_BETA_TARGET=""
+#
+BOARDRATING=""
+CHIP="http://docs.armbian.com/Hardware_Allwinner-A20/"
+HARDWARE="https://linux-sunxi.org/Merrii_Hummingbird_A20"
+FORUMS="http://forum.armbian.com/index.php/forum/7-allwinner-a10a20/"

patch/u-boot/u-boot-sunxi/Merrii_Hummingbird_A20.patch

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+diff --git a/configs/Merrii_Hummingbird_A20_defconfig b/configs/Merrii_Hummingbird_A20_defconfig
+new file mode 100755
+index 0000000..20a98bb
+--- /dev/null
++++ b/configs/Merrii_Hummingbird_A20_defconfig
+@@ -0,0 +1,16 @@
++CONFIG_ARM=y
++CONFIG_ARCH_SUNXI=y
++CONFIG_SPL_I2C_SUPPORT=y
++CONFIG_MACH_SUN7I=y
++CONFIG_DRAM_CLK=432
++CONFIG_MMC0_CD_PIN="PH1"
++CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-hummingbird"
++CONFIG_AHCI=y
++# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
++CONFIG_SYS_EXTRA_OPTIONS="SUNXI_GMAC,SATAPWR=SUNXI_GPB(8)"
++CONFIG_SPL=y
++# CONFIG_CMD_IMLS is not set
++# CONFIG_CMD_FLASH is not set
++# CONFIG_CMD_FPGA is not set
++CONFIG_ETH_DESIGNWARE=y
++CONFIG_USB_EHCI_HCD=y