drivers:usb:fsl: Introduce FSL_USB2_PHY_UTMI_DUAL macro

Introduce FSL_USB2_PHY_UTMI_DUAL macro for setting phy mode
in SOCs such has T4240, T1040, T2080 which have utmi dual-phy

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>