ahci & exynos5: enable HDDs like Seagate Barracuda

Initialize and limit port speed to 3 Gbps in general because the Seagate
Barracuda 1TB throws much errors with 6 Gbps by now.

Try all port speeds from the highest to the lowest as long as debouncing fails
and try them all again in this order when falling back to slower debouncing.

Try to recover from all types of interface error.

When a port was recovered from an error during a NCQ command
get the last LBA that was accessed successfully and continue command from
this point.

Use a platform driver through the 'Regulator' service to do CMU and PMU config.

Switch off verbosity by default.
run: fix noux_net_netcat for most x86_32 platforms

native pistachio x86 is broken in general

arm fix still pending

Issue #782
run: add platform_drv to netperf run script
lwip: tweak foc_panda to netperf tcp >90MBit/s
run: print packets/s at end of netperf script
lwip: support send, recv timeouts
lwip: increase send performance for arndale USB2.0

Getting up to 91 Mbit out of a 100 Mbit card.
netperf: add support to timeout if host went away