Hi,

PS/2 controller emulation lacks the KBD_CMD_SCANCODE command, which 
gets/sets the scancode set (1, 2 or 3).
Scancode sets 1 and 3 are still not supported.

Changelog v1 to v2
- Fix typo (AT scancode set is 2, not 3)
- Use ps2_put_keycode() instead of ps2_queue(), to work even in 
non-translated mode (in KBD_CMD_GET_ID and KBD_CMD_SCANCODE)
- Fix keyboard reset, which should also reset scancode set

Thanks Aurelien for your comments.

Hervé