[XTENSA] Fix non-existent pte_token_t typedef to pgtable_t

This bug was introduced in 2f569afd9ced9ebec9a6eb3dbf6f83429be0a7b4.
(CONFIG_HIGHPTE vs. sub-page page tables)

Signed-off-by: Chris Zankel <chris@zankel.net>
diff --git a/include/asm-xtensa/pgalloc.h b/include/asm-xtensa/pgalloc.h
index 8d1544e..4f4a798 100644
--- a/include/asm-xtensa/pgalloc.h
+++ b/include/asm-xtensa/pgalloc.h
@@ -47,7 +47,7 @@
 	return kmem_cache_alloc(pgtable_cache, GFP_KERNEL|__GFP_REPEAT);
 }
 
-static inline pte_token_t pte_alloc_one(struct mm_struct *mm,
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 					unsigned long addr)
 {
 	struct page *page;