mm/page_table_check: fix typos

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Chih-En Lin <[e-mail]>
Acked-by: Pasha Tatashin <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>

mm/page_table_check.c

···
 }
 
 /*
- * An enty is removed from the page table, decrement the counters for that page
+ * An entry is removed from the page table, decrement the counters for that page
  * verify that it is of correct type and counters do not become negative.
  */
 static void page_table_check_clear(struct mm_struct *mm, unsigned long addr,
···
 }
 
 /*
- * A new enty is added to the page table, increment the counters for that page
+ * A new entry is added to the page table, increment the counters for that page
  * verify that it is of correct type and is not being mapped with a different
  * type to a different process.
  */