I was able to recover. Here's what I did:
copied /boot/config-6.1.75-vendor-rk35xx to /boot/config-6.10.6-current-rockchip-rk3588 and was able to get apt upgrade to complete successfully.
ran sudo apt list --installed | egrep "linux-dtb|linux-image" used apt remove to removed the packages listed except for linux-dtb-current-rockchip-rk3588 linux-image-current-rockchip-rk3588
ran sudo apt install --reinstall linux-dtb-current-rockchip-rk3588 linux-image-current-rockchip-rk3588 to reinstall both packages
froze Armbian kernel upgrades in armbian-config
rebooted
