platform/x86/intel/vsec: correct kernel-doc comments

platform/x86/intel/vsec: correct kernel-doc comments

Fix kernel-doc warnings in intel_vsec.h to eliminate all kernel-doc
warnings:

Warning: include/linux/intel_vsec.h:92 struct member 'read_telem' not
 described in 'pmt_callbacks'
Warning: include/linux/intel_vsec.h:146 expecting prototype for struct
 intel_sec_device.  Prototype was for struct intel_vsec_device instead
Warning: include/linux/intel_vsec.h:146 struct member 'priv_data_size'
 not described in 'intel_vsec_device'

In struct pmt_callbacks, correct the kernel-doc for @read_telem.
kernel-doc doesn't support documenting callback function parameters,
so drop the '@' signs on those and use "* *" to make them somewhat
readable in the produced documentation output.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20251216063801.2896495-1-rdunlap@infradead.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>