platform/x86/intel/ifs: Refactor MSR usage in IFS test code

platform/x86/intel/ifs: Refactor MSR usage in IFS test code

IFS tests such as Scan at Field (SAF) or Structural Based Functional
Test at Field (SBAF), require the user to load a test image. The image
loading process is similar across these tests, with the only difference
being MSR addresses used. To reuse the code between these tests, remove
the hard coding of MSR addresses and allow the driver to pass the MSR
addresses per IFS test (via driver device data).

Add a new structure named "struct ifs_test_msrs" to specify the
test-specific MSR addresses. Each IFS test will provide this structure,
enabling them to reuse the common code.

This is a preliminary patch in preparation for the addition of SBAF
support.

Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://lore.kernel.org/r/20240801051814.1935149-2-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>