uboot-imx

MLK-13450-14 ehci-mx6: Update EHCI driver to support OTG0 on i.MX7ULP

The ULP has two USB controllers. These two controllers have similar NC
registers layout as i.MX7D. But OTG0 uses UTMI PHY simliar as i.MX6, not
the integrated PHY on i.MX7D. The OTG1 needs off-chip HSIC PHY or ULPI PHY
to work.

This patch only supports OTG0 with UTMI PHY.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit 1ac22cabb96a14ac4ca58df60ae2025fb5e94db6)
(cherry picked from commit 53cfed1f967e44507a80a0b8c8113ae67188304b)
(cherry picked from commit 6ae64ed7f3fb5dcc204e87c8512ee3796d655189)