mm/memremap: fix wrong function name above memremap_pages()

Fix the wrong function name dev_memremap_pages above memremap_pages() to
avoid confusion.  Minor readability improvement.

Link: https://lkml.kernel.org/r/20220607143621.58989-1-linmiaohe@huawei.comSigned-off-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/memremap.c

@@ -279,8 +279,8 @@ static int pagemap_range(struct dev_pagemap *pgmap, struct mhp_params *params,
 
 
 /*
- * Not device managed version of dev_memremap_pages, undone by
- * memunmap_pages().  Please use dev_memremap_pages if you have a struct
+ * Not device managed version of devm_memremap_pages, undone by
+ * memunmap_pages().  Please use devm_memremap_pages if you have a struct
  * device available.
  */
 void *memremap_pages(struct dev_pagemap *pgmap, int nid)