Use this on the IQ31244 to force a watchdog reset from the M41ST84
if it's been attached. The generic reset doesn't fully reset the
system whereas the RTC watchdog reset does.
just options CPU_IN_CKSUM.
Include std.arm in all arm platform std files.
This should reenable the asm in_cksum code for all arm platforms.
Also remove the now unused in_cksum_arm.S.
I/O processor and the i31244 PCI-X S-ATA controller.
The IQ31244 is almost identical to the IQ80321, from software's
perspective, so we share much of the code.
