Packages missing in 21.02 on ath79/mips_24kc


after upgrading to 21.02 there are some issues with opkg. Firstly, all kernel module packages where missing. I manually had to add src/gz openwrt_kmod to get them working.

Secondly I cannot install librt (as a dependency of usb-modeswitch), the package is missing in the repo. For snapshot it's available. There's also no faillog for this package. Did I miss something? What can I do to get this package installable?

Kind regards