nitrogen6_max: nitrogen6_max_lantech_defconfig: add CONFIG_USB_BOOT_FIRST=y

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>

configs/nitrogen6_max_lantech_defconfig

 CONFIG_ARM=y
 CONFIG_ARCH_MX6=y
 CONFIG_SYS_TEXT_BASE=0x17800000
+CONFIG_DEFAULT_DISPLAY_PM9598=y
+CONFIG_EXTRA_ENV_SETTINGS_DEFCONFIG="usb_connect_wait=3000\0"
+CONFIG_USB_BOOT_FIRST=y
 CONFIG_TARGET_NITROGEN6_MAX=y
 CONFIG_ENV_VARS_UBOOT_CONFIG=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6_max/nitrogen6_max4g.cfg,MX6Q,DDR_MB=3840,BOARD_TYPE=\"nitrogen6_max-lantech\",DEFCONFIG=\"nitrogen6_max_lantech\""
-CONFIG_DEFAULT_DISPLAY_PM9598=y
 CONFIG_BOOTDELAY=3
 CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
 CONFIG_SUPPORT_RAW_INITRD=y
@@ -74,4 +76,3 @@ CONFIG_USB_ETHER_SMSC95XX=y
 CONFIG_VIDEO=y
 # CONFIG_VIDEO_SW_CURSOR is not set
 CONFIG_OF_LIBFDT=y
-CONFIG_EXTRA_ENV_SETTINGS_DEFCONFIG="usb_connect_wait=3000\0"