Ugh! Before creating the Snowflake Makefile, I updated my feed and checked for its availability. It wasn't available. I Googled "openwrt snowflake" and it didn't produce any references to an OpenWRT package. I should have checked the OpenWRT GIT Repo. Full Disclosure: I'm running Entware and the Entware feed must not be up-to-date with Snowflake. I just grabbed the OpenWRT Makefile and files, made the necessary Entware changes, and it's compiling Great. Thanks for the heads-up!
P.S. I additionally created a Makefile for extor-static-cookie that is a Pluggable Transport between Snowflake and Tor.