dbus-sdr: Add the function of reading VR sensor event.

ipmiSenGetSensorEventStatus() now handles VR type sensor. It reads the
profile status from VR daemon and set the corresponding event bit to
IPMI package.

tested: by ipmi cmd: 0x04 0x2B
```
HOST:
$ /tmp# ./ipmitool raw 0x04 0x2B "0xb4"
 00 02

BMC:
journalctl --since "1 min ago" | grep ipmid
Jan 01 00:09:16 $HOST ipmid[3078]: VR sensor $SENSOR_NAME mode is: [1] 800MHz
```

Signed-off-by: Hao Jiang <jianghao@google.com>
Change-Id: I491765ec6c840836e0d69122e29d9a86a3dea82a
Signed-off-by: Willy Tu <wltu@google.com>
1 file changed