usb: common: silence dubious errors

Both dr_mode and maximum-speed properties are usually optional. Drivers
will still try to fetch the properties nonetheless, which leads to error
messages, although they are no errors. Change pr_err() to pr_debug().

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

0 files changed, 0 insertions, 0 deletions