[ARM] 4708/1: iop: update defconfigs for 2.6.24

* iop13xx, iop33x, iop32x: re-enable the IOP_ADMA driver by default
* iop32x: enable RS5C372 and RTC_CLASS support

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>