Merge pull request #2795 from FreifunkVogtland/war-ath79-hang

[Backport v2022.1.x] ath79-generic: Work around boot hang on Unifi AC-Mesh

targets/ath79-generic

+-- modify kernel builds slightly to work around a boot hang on various device
+-- based on the QCA9563 SoC - especially the Unifi AC-* devices
+config('KERNEL_AIO', true)
+
 local ATH10K_PACKAGES_QCA9880 = {
 	'kmod-ath10k',
 	'-kmod-ath10k-ct',