RB5 makes use of the two USB controllers onboard. USB0 is connected
to the Type C port and USB1 is connected to USB3.1 HUB which exposes
following downstream ports:

* 2 Type A ports
* 2 HS/SS ports on the expansion connector
* USB to LAN device

Hence, enable these two controllers with the required PHYs.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200917082622.6823-4-manivannan.sadhasivam@linaro.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>