x86/ept: remove unnecessary sync after resolving misconfigured entries

x86/ept: remove unnecessary sync after resolving misconfigured entries

When using EPT, type changes are done with the following steps:

1. Set entry as invalid (misconfigured) by settings a reserved memory
type.

2. Flush all EPT and combined translations (ept_sync_domain()).

3. Fixup misconfigured entries as required (on EPT_MISCONFIG vmexits or
when explicitly setting an entry.

Since resolve_misconfig() only updates entries that were misconfigured,
there is no need to invalidate any translations since the hardware
does not cache misconfigured translations (vol 3, section 28.3.2).

Remove the unnecessary (and very expensive) ept_sync_domain() calls).

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>