platform/x86/intel/pmt: decouple sysfs and namespace

platform/x86/intel/pmt: decouple sysfs and namespace

The PMT namespace includes the crashlog sysfs attribute information.
Other crashlog version/types may need different sysfs attributes.
Coupling the attributes with the namespace blocks this usage.

Decouple sysfs attributes from the name space and add them to the
specific entry.

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://lore.kernel.org/r/20250713172943.7335-10-michael.j.ruhl@intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>