nvidia-oem: Implement GetRedfishHostName

This command is used by BIOS before creating SMBIOS record
type 42. BIOS gets USBDescription information from BMC.

Note:
The implementation in this PR is for RedfishHostName.
The support for other device descriptors will be added in
upcoming PRs.

Design Document for RHI:
[1] https://gerrit.openbmc.org/c/openbmc/docs/+/79327

Redfish Host Interface specification:
[2] https://www.dmtf.org/sites/default/files/standards/documents/DSP0270_1.3.0.pdf

Tested:
Tested on gb200nvl-obmc platform:

root@gb200nvl-obmc:~# ipmitool raw 0x3c 0x32
 67 62 32 30 30 6e 76 6c 2d 6f 62 6d 63

Change-Id: Ib70dd1fb8c4bdf6e6b02c4329069751d1059bad7
Signed-off-by: Prithvi Pai <ppai@nvidia.com>
diff --git a/oem/nvidia/oemcommands.hpp b/oem/nvidia/oemcommands.hpp
index 17ff34f..5cf0a7b 100644
--- a/oem/nvidia/oemcommands.hpp
+++ b/oem/nvidia/oemcommands.hpp
@@ -17,6 +17,7 @@
 {
 constexpr auto cmdGetUsbVendorIdProductId = 0x30;
 constexpr auto cmdGetUsbSerialNumber = 0x31;
+constexpr auto cmdGetRedfishHostName = 0x32;
 } // namespace bootstrap_credentials_oem
 
 namespace bios_password