Kmod-rtc-pcf8563 missing from OpenWrt feeds?

Hey! I'm a bit puzzled and was wondering if somebody could help explain why the kmod-rtc-pcf8563 kernel module seems to be missing from the official OpenWrt releases.

If I clone the git repo manually and run make menuconfig I see it as an option to compile. However if I download the SDK for my device and update the feeds it doesn't show up as an option to select. I'm guessing since it's missing from the SDK it doesn't get built for the official releases?