[hmac/dv] Verify save & restore

[andreaskurth]

Tentative list of TODOs:

• Extend testplan and coverplan to test and cover save & restore feature.
• Enable save & restores in tests and make necessary extensions to the scoreboard as well as burst_wr_msg so this gets correctly checked and fully covered.
• Add additional directed test that covers context switching between multiple message streams (not sure if this has to be an UVM test, maybe a SW test would suffice?).

[vogelpi]

@moidx on track according to reports we got today. @andreaskurth agree, TLT in cryptolib is passing now and we made progress in block-level DV. @moidx more TLTs to follow over the next days.

[martin-velay]

The current issue can be closed once this PR is merged

• [hmac/dv] Save and Restore #23116

as the following issue is overtaking the remaining DV work for M5:

• [hmac,dv] Save and Restore improvements #23562

FYI @vogelpi / @johannheyszl

[moidx]

Moving this issue to M5, but lets continue to prioritize this to land it by the end of the week if possible.

[martin-velay]

Closed as #23116 has been merged