Add Get SEL Time UTC Offset function

The current ipmi does not support the time zone acquisition command.
This command is a standard ipmi command. In the ipmi specification,
the corresponding NetFn=0x0A and Cmd=0x5C.
Returns the offset in minutes from UTC to SEL (local) time.
The offset is a 16 bit signed integer with two complements.
LS byte comes first.
(Range from - 1440 to 1440)

tested:
When the current time zone is East Zone 8,
ipmitool raw 0x0A 0x5C
e0 01

Signed-off-by: Xiaochao Ma <maxiaochao@inspur.com>
Change-Id: I74edfe4f18201bec801b021e69a88231e51473a5
diff --git a/host-ipmid-whitelist.conf b/host-ipmid-whitelist.conf
index 5397115..9dd1eb1 100644
--- a/host-ipmid-whitelist.conf
+++ b/host-ipmid-whitelist.conf
@@ -40,6 +40,7 @@
 0x0A:0x44    //<Storage>:<Add SEL Entry>
 0x0A:0x48    //<Storage>:<Get SEL Time>
 0x0A:0x49    //<Storage>:<Set SEL Time>
+0x0A:0x5C    //<Storage>:<Get SEL Time UTC Offset>
 0x0C:0x02    //<Transport>:<Get LAN Configuration Parameters>
 0x2C:0x00    //<Group Extension>:<Group Extension Command>
 0x2C:0x01    //<Group Extension>:<Get DCMI Capabilities>