Add Set Special user password command

Set special user password command support added.
This will be used to set the password for the linux
uid 0 (root) user.

Tested:
1. Verified able to change the root password using this command
2. Command responds only to host interface is verified by adding
manual channel number fix from host-ipmid

Change-Id: I6ccd61b6f924cd7337c4c8125fc890cac30aaf48
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
diff --git a/include/oemcommands.hpp b/include/oemcommands.hpp
index 137251a..b90b388 100644
--- a/include/oemcommands.hpp
+++ b/include/oemcommands.hpp
@@ -27,6 +27,7 @@
     cmdSetPowerRestoreDelay = 0x54,
     cmdGetPowerRestoreDelay = 0x55,
     cmdSetOEMUser2Activation = 0x5A,
+    cmdSetSpecialUserPassword = 0x5F,
     cmdSetShutdownPolicy = 0x60,
     cmdGetShutdownPolicy = 0x62,
     cmdSetFanConfig = 0x89,