USB: isp1362: Use devm_ioremap_resource

Use devm_ioremap_resource to simplify error handling in the probe
function and to get rid of some boilerplate in the remove function.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>