drm/xe: add xe_migrate_resolve wrapper and is_vram_resolve support

Introduce an internal __xe_migrate_copy(..., is_vram_resolve) path and
expose a small wrapper xe_migrate_resolve() that calls it with
is_vram_resolve=true.

For resolve/decompression operations we must ensure the copy code uses
the compression PAT index when appropriate; this change centralizes that
behavior and allows callers to schedule a resolve (decompress) operation
via the migrate API.

v3: Fix kernel-doc warnings

v2: (Matt)
  - Simplify xe_migrate_resolve(), use single BO/resource;
    remove copy_only_ccs argument as it's always false.

Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Nitin Gote <nitin.r.gote@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260304123758.3050386-7-nitin.r.gote@intel.com

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