mshv-{bindings, ioctls}: Add more synthetic MSRs

[russell-islam]

While we create new partition we enable a few synthetic features and corresponding MSRs needs to be added to the MSR index list. This additional MSRs will be saved and restored.

Summary of the PR

Please summarize here why the changes in this PR are needed.

Requirements

Before submitting your PR, please make sure you addressed the following requirements:

• [ ] All commits in this PR have Signed-Off-By trailers (with git commit -s), and the commit message has max 60 characters for the summary and max 75 characters for each description line.
• [ ] All added/changed functionality has a corresponding unit/integration test.
• [ ] All added/changed public-facing functionality has entries in the "Upcoming Release" section of CHANGELOG.md (if no such section exists, please create one).
• [ ] Any newly added unsafe code is properly documented.

[russell-islam]

Tested this PR using unit test test_get_set_msr_index_list()