Initial inclusion of sof-firmware

Summary: Resolves T9501

Test Plan: Firmware files get installed to correct path

Reviewers: Triage Team, DataDrake, JoshStrobl

Reviewed By: Triage Team, JoshStrobl

Subscribers: TClark77, JoshStrobl, DataDrake, livingsilver94, lf-araujo

Maniphest Tasks: T9501

Differential Revision: https://dev.getsol.us/D10544