uboot-envtools: ramips: add env config for SIM SIMAX1800U

This newly supported device has the same env partition size and
offset as SIMAX1800T.

Signed-off-by: Shiji Yang <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/19455
Signed-off-by: Hauke Mehrtens <[email protected]>

package/boot/uboot-tools/uboot-envtools/files/ramips

@@ -85,7 +85,8 @@ zyxel,wsm20)
 	ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x20000" "0x20000"
 	;;
 haier,har-20s2u1|\
-sim,simax1800t)
+sim,simax1800t|\
+sim,simax1800u)
 	ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x20000" "0x20000"
 	ubootenv_add_uci_sys_config "/dev/mtd1" "0x40000" "0x40000" "0x20000"
 	;;