sunxi: Replace the pcDuino3 config with FDT version

We currently have Linksprite_pcDuino3 and Linksprite_pcDuino3_fdt. Drop the
former in favour of the latter.

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

configs/Linksprite_pcDuino3_defconfig

@@ -7,3 +7,10 @@ CONFIG_MACH_SUN7I=y
 CONFIG_DRAM_CLK=480
 CONFIG_DRAM_ZQ=122
 CONFIG_DRAM_EMR1=4
+CONFIG_DM=y
+CONFIG_DM_GPIO=y
+CONFIG_DM_SERIAL=y
+CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-pcduino3"
+CONFIG_OF_CONTROL=y
+CONFIG_SPL_DISABLE_OF_CONTROL=y
+CONFIG_OF_SEPARATE=y

configs/Linksprite_pcDuino3_fdt_defconfig

@@ -1,15 +0,0 @@
-CONFIG_SPL=y
-CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_GMAC,AHCI,SATAPWR=SUNXI_GPH(2),USB_EHCI"
-CONFIG_FDTFILE="sun7i-a20-pcduino3.dtb"
-CONFIG_DM=y
-CONFIG_DM_GPIO=y
-CONFIG_DM_SERIAL=y
-CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-pcduino3"
-CONFIG_OF_CONTROL=y
-CONFIG_OF_SEPARATE=y
-CONFIG_ARM=y
-CONFIG_ARCH_SUNXI=y
-CONFIG_MACH_SUN7I=y
-CONFIG_DRAM_CLK=480
-CONFIG_DRAM_ZQ=122
-CONFIG_DRAM_EMR1=4