Update retroarch to 1.8.5
Full changelog can be found here.
Most Notable Changes:
- Entirely new user interface that is easier to navigate.
- OpenGL support on Linux should now be much more stable.
Test Plan: - Play Super Mario World from SNES.
Reviewers: Triage Team, JoshStrobl
Reviewed By: Triage Team, JoshStrobl
Differential Revision: https://dev.getsol.us/D8530