uboot-envtools: fix configuration for I2SE Duckbills

After changing board names to DT compat string, we also need to
adjust the script which generates uboot-env configuration files.

Fixes: e880a30 ("mxs: use generic sysinfo board detection")
Signed-off-by: Michael Heimpold <mhei@heimpold.de>

package/boot/uboot-envtools/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=uboot-envtools
 PKG_DISTNAME:=u-boot
 PKG_VERSION:=2018.03
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE:=$(PKG_DISTNAME)-$(PKG_VERSION).tar.xz

package/boot/uboot-envtools/files/mxs

@@ -13,7 +13,7 @@ touch /etc/config/ubootenv
 board=$(board_name)
 
 case "$board" in
-duckbill)
+i2se,duckbill)
 	ubootenv_add_uci_config "/dev/mmcblk0" "0x20000" "0x20000"
 	ubootenv_add_uci_config "/dev/mmcblk0" "0x40000" "0x20000"
 	;;