T60: enable userspace EC events

EC events 0x50-0x5f are never triggered by the EC. Instead they
can be generated by writing the wanted events to register 0x2a.

Change-Id: Ifd7ce991ee094cb16e8425ed670b6b45cffe3907
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/61
Tested-by: build bot (Jenkins)
1 file changed