Nope.
But 5.8.5 should not be a big deal. sunxi-current is already on this particular version and it is planned to bump the current Armbian release to 20.08.1 this weekend. If you are impatient however you can grab dtb, header and kernel image for sunxi from my server (https://werner.armbian.de/_2020/Aug31/) or via nightly builds (beta.armbian.com) and simply install those packages by using dpkg -i.