intel/dev: Add compressed PAT entry

This will be used in Xe2+ to store images compressed in memory.

Still missing add the compressed PAT index and attributes to
LNL intel_device_info.

Reviewed-by: Rohan Garg <rohan.garg@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28833>

src/intel/dev/intel_device_info.py

@@ -229,6 +229,9 @@ Struct("intel_device_info_pat_desc",
         Member("intel_device_info_pat_entry", "scanout",
                comment="scanout and external BOs"),
 
+        Member("intel_device_info_pat_entry", "compressed",
+               comment="Only supported in Xe2, compressed + WC"),
+
         Member("intel_device_info_pat_entry", "writeback_incoherent",
                comment=("BOs without special needs, can be WB not coherent "
                         "or WC it depends on the platforms and KMD")),