[MIPS] IP22: Fix hang due to messing with timer interrupt handler

As IP22 is now using do_IRQ for timer interrupt, don't mess with
interrupt handler any longer

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
1 file changed