SAMA5 OHCI:  When UPLL drives OHCI the logically correct divider of 10 does not work;  But a divider of 5 does.  Why?

SAMA5 EHCI:  Fix bits being clobbered in PORTSC on hand-off to OHCI.  OHCI: Fix some more trace configuration issues.  Both:  Don't muck with SFR port selection bits once they have been initialized

A consequence of previous change:  Configurations that select a PHY also need to set CONFIG_NETDEVICES or PHY configuration will be lost on the next reconfiguration

SAMA5 EMAC:  Resolve issues with DUAL PHY support needed for both EMAC and GMAC peripherals.  EMAC driver is now code complete and builds without complaint