1st stage of USB support for Exynos5 chips: the register definitions
Fix usb attachment and add an usb2 phy enable for exynos5410.

There is still an issue with ohci
Well, nasty thing happen if you set /dev/tty to VNON too. Disable for now.
remove debugging.
sun4v: All cpus must be setup with a TSB descriptor, so pmap_setup_tsb_sun4v() must take a pointer to the TSB descriptor
sun4v: update TODO list
document commented out .INVISIBLE and .JOIN.