USB protocol macros (CONFIG_USB_EHCI ...) to be included only when
CONFIG_HAS_FSL_DR_USB is defined for a board. Presence of USB DR controller
should be declared along with the underlying protocol used in the controller
Signed-off-by: NRamneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: NKumar Gala <galak@kernel.crashing.org>