This code has been ported from Linux kernel - tag v5.1-rc2.
The difference from the kernel is the removal of:
fsl,usbmisc = <&usbmisc 1>;
fsl,usbphy = <&usbphy1>;
properties, which are not needed for correct u-boot operation (as PHY
setup is done in ehci-mx5.c file itself).
Signed-off-by: Lukasz Majewski <lukma@denx.de>
552b1b3142