Implement Get Message Flags Command

Enable command that Get Message Flag can set right bit about
watchdog.

Tested:
Set watchdog timer
(Pre-timeout interrupt is Messaging, Initial Countdown is 2 second).
ipmitool raw 0x06 0x24 0x5 0x30 0x1 0x3e 0x14 0x00
Start watchdog timer.
ipmitool mc watchdog reset
After watchdog timer expired,
restart host and excute Get Message Flag Command.
ipmitool raw 0x06 0x31
Expect return "0x0b".

Signed-off-by: Yong Li <yong.b.li@linux.intel.com>
Change-Id: Ib545034edfd0087e45d6a97125495e365989d7d3
2 files changed