patches.xorg/: add 21.1.10 subdirectory for current Debian testing/unstable with rebased patch set.

Mike Gabrielrequested to merge
personal/sunweaver/xorg-server-21.1.10 into master

This MR requires !2 (merged) to be addressed / reviewed / merged first.

@Ionic: After merging this, please release x2gokdrive 0.0.0.3. Thanks.

Merge request reports