Add glue code for TI AM62 to the dwc3 driver; Most code adopted from
TI vendor u-boot code.
Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>