[IrDA]: PXA FIR code device model conversion

pxaficp_ir.c was not converted to the device model framework.

Signed-off-by: Paul Sokolovsky <pmiscml@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>