Add linux3 to homu config
Add linux3 to homu config

UK992/saltfs,setupminimal/saltfs,setupminimal/saltfs,rwaweber/saltfs,servo/saltfs,ALikhachev/saltfs,rwaweber/saltfs,UK992/saltfs,servo/saltfs,rwaweber/saltfs,ALikhachev/saltfs,ALikhachev/saltfs,setupminimal/saltfs,UK992/saltfs