kernel/vm: Move page ACCESS state up in VMCache::Delete.

Should fix #20240.
(cherry picked from commit 5e3fdaa3cc70c1c9a09d6995e585ca400451cf56)

Change-Id: I090439121e036bf3ba5cccd9bac2bbb081aa77e1
Reviewed-on: https://review.haiku-os.org/c/haiku/+/11500
Reviewed-by: waddlesplash <[email protected]>

src/system/kernel/vm/VMCache.cpp

@@ -691,6 +691,8 @@ VMCache::Delete()
 				"@!page %p; cache %p", page, this, page, this);
 		}
 
+		DEBUG_PAGE_ACCESS_START(page);
+
 		if (page->State() == PAGE_STATE_MODIFIED) {
 			// pages can't be freed in MODIFIED state
 			page->modified = false;
@@ -704,7 +706,6 @@ VMCache::Delete()
 
 		TRACE(("vm_cache_release_ref: freeing page 0x%lx\n",
 			page->physical_page_number));
-		DEBUG_PAGE_ACCESS_START(page);
 		vm_page_free_etc(this, page, &reservation);
 	}
 	vm_page_unreserve_pages(&reservation);