USB: isp1760-if: Change to use irq_of_parse_and_map

This uses irq_of_parse_and_map instead of of_irq_map_one and
irq_create_of_mapping.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>