hvmloader: add fields for SMBIOS 2.4 compliance

hvmloader: add fields for SMBIOS 2.4 compliance

The version of SMBIOS set in the entry point is 2.4, however several
structures are missing fields required by 2.4. Fix this by adding the
missing fields, this is based on the documents found at the DMTF site
[0].

Most fields are set to 0 (undefined/not specified), except for the
cache related handlers that need to be initialized to 0xffff in order
to signal that the information is not provided.

[0] https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.1.1.pdf

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reported by: Chris Gilbert <chris.gilbert@citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>