Use ofnode_ instead of fdt_ APIs so that the drivers can support live DT.
This patch updates usb_get_dr_mode() and usb_get_maximum_speed() to use
ofnode as parameter instead of fdt offset. And all the drivers who use
these APIs update to use live dt APIs at the same time.
Change-Id: I41a3fa52e8fdb99f7fc36b1bc0eb21ae82f90e63
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(am from http://patchwork.ozlabs.org/patch/1248682/)