Rename razer-drivers to openrazer

Summary:
This is meant to fix one of the tickboxes in T3667
Upstream changed the name from razer-drivers to openrazer and this revision makes that change in the Solus repo too.

PR to drop razer-drivers can be found here.
Revisions part of this change: D5858 and D5859

Test Plan:

• Verified that package built without errors
• Installed and verified that razergenie and polychromatic didn't print any errors or complain

(Please note that I don't have any razer hardware to test with, but this is such a small change so it should be necessary)

• Any help to just double check this would be helpful though

Reviewers: Triage Team, JoshStrobl, DataDrake

Reviewed By: Triage Team, JoshStrobl, DataDrake

Subscribers: DataDrake, JoshStrobl, Girtablulu

Differential Revision: https://dev.getsol.us/D5877