MdePkg/IndustryStandard: Update IPMI definitions

MdePkg/IndustryStandard: Update IPMI definitions

This change updates IPMI header files to support
build up SMBIOS 42 Redfish Host Interface record
using the information retrieved via IPMI App/Net
Function.

In IpmiNetFnApp.h, we also remove the duplicate
definition of IPMI_APP_GET_CHANNEL_INFO.

Signed-off-by: Abner Chang <abner.chang@amd.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Nickle Wang <nicklew@nvidia.com>
Cc: Igor Kulchytskyy <igork@ami.com>
Cc: Isaac Oram <isaac.w.oram@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Reviewed-by: Isaac Oram <isaac.w.oram@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>