ICH9x supports a new SMI type-IchnGpioUnlock. Then IchnGpioUnlock should be added to the enum definition EFI_SMM_ICHN_SMI_TYPE
[Impaction]
modify the SmmIchnDispatch.h file
[Reference Info]
ICH9x supports a new SMI type-IchnGpioUnlock.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4862 6f19259b-4bc3-4df7-8a09-765794883524