CIRS: turn local_save_flags() + local_irq_disable()into local_irq_save()

This is a followup to my patches that fixed this all over the tree quite some
time ago. This one went unnoticed for some reason.

TLB handling for CRIS contains local_irq_disable() after local_save_flags().
Turn this into local_irq_save().
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Jesper Nilsson <Jesper.Nilsson@axis.com>

arch/cris/arch-v10/mm/fault.c

@@ -80,8 +80,7 @@ handle_mmu_bus_fault(struct pt_regs *regs)
 	 * do_page_fault may have flushed the TLB so we have to restore
 	 * the MMU registers.
 	 */
-	local_save_flags(flags);
-	local_irq_disable();
+	local_irq_save(flags);
 	pmd = (pmd_t *)(pgd + pgd_index(address));
 	if (pmd_none(*pmd))
 		goto exit;