x86/mm: Fix typo in comment

Signed-off-by: Takuya Yamamoto <tkyymmt01@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20180829072730.988-1-tkyymmt01@gmail.com

arch/x86/mm/extable.c

@@ -230,7 +230,7 @@ void __init early_fixup_exception(struct pt_regs *regs, int trapnr)
 	 * result in a hard-to-debug panic.
 	 *
 	 * Keep in mind that not all vectors actually get here.  Early
-	 * fage faults, for example, are special.
+	 * page faults, for example, are special.
 	 */
 	if (fixup_exception(regs, trapnr))
 		return;