Move default y configs out of arch/board Kconfig

Some archs/boards specify their own default by pre-defining the config
which causes the Kconfig system to mix up the order of the configs in
the defconfigs... This will cause merge pain if allowed to proliferate.

Remove the configs that behave this way from the archs.

A few configs still remain, but that is because they only exist as
defaults and do not have a proper Kconfig entry. Those appear to be:

SPIFLASH
DISPLAY_BOARDINFO

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
[trini: rastaban, am43xx_evm_usbhost_boot, am43xx_evm_ethboot updates,
drop DM_USB from MSI_Primo81 as USB_MUSB_SUNXI isn't converted yet to DM]
Signed-off-by: Tom Rini <trini@konsulko.com>

configs/MSI_Primo81_defconfig

@@ -3,13 +3,23 @@ CONFIG_ARCH_SUNXI=y
 CONFIG_MACH_SUN6I=y
 CONFIG_DRAM_CLK=360
 CONFIG_DRAM_ZQ=122
+CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
+CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
+CONFIG_AXP_GPIO=y
 CONFIG_VIDEO_LCD_MODE="x:768,y:1024,depth:18,pclk_khz:66000,le:56,ri:60,up:30,lo:36,hs:64,vs:50,sync:3,vmode:0"
 CONFIG_VIDEO_LCD_BL_EN="PA25"
 CONFIG_VIDEO_LCD_BL_PWM="PH13"
 CONFIG_VIDEO_LCD_PANEL_MIPI_4_LANE_513_MBPS_VIA_SSD2828=y
+CONFIG_USB_MUSB_SUNXI=y
 # CONFIG_USB_KEYBOARD is not set
 CONFIG_DEFAULT_DEVICE_TREE="sun6i-a31s-primo81"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SPL=y
+CONFIG_CMD_SETEXPR=y
+CONFIG_CMD_NET=y
+CONFIG_DM_ETH=y
+CONFIG_NETDEVICES=y
+CONFIG_DM_SERIAL=y
 CONFIG_AXP221_DLDO1_VOLT=3300
 CONFIG_VIDEO_LCD_SSD2828_TX_CLK=27
 CONFIG_VIDEO_LCD_SSD2828_RESET="PA26"
@@ -17,7 +27,4 @@ CONFIG_VIDEO_LCD_SPI_CS="PH9"
 CONFIG_VIDEO_LCD_SPI_SCLK="PH10"
 CONFIG_VIDEO_LCD_SPI_MOSI="PH11"
 CONFIG_VIDEO_LCD_SPI_MISO="PH12"
-CONFIG_AXP_GPIO=y
-CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
-CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
-CONFIG_USB_MUSB_SUNXI=y
+CONFIG_USB=y