Add support for OEM 102nd key

[garbear]

Description

This adds support for the OEM key present on 102-key keyboards (non-US).

Related PRs

Requires:

• https://github.com/kodi-game/controller-topology-project/pull/279
• https://github.com/xbmc/xbmc/pull/24202.

Added to libretro in https://github.com/libretro/RetroArch/pull/7173

[garbear]

Merging with https://github.com/kodi-game/controller-topology-project/pull/279