meta-quanta: s6q: enable the chassis capabilities command

Enable the ipmi chassis capabilities command.

Tested:
~# ipmitool raw 0x00 0x00
 01 20 20 20 20 20
~# ipmitool raw 0x00 0x05 0x00 0x20 0x20 0x20 0x20 0x20

~# ipmitool raw 0x00 0x00
 00 20 20 20 20 20

Signed-off-by: Joseph Fu <joseph.fu@quantatw.com>
Change-Id: Id35c6cbb78104c474d32de2f4df430565ff428e8