usb-host: restrict workaround to new libusb versions
Fixes build failures with old kernels (USBDEVFS_GET_SPEED missing),
on the assumtion that distros with old kernels also have old libusb.
Reported-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <
20200902081445.3291-1-kraxel@redhat.com>
Message-Id: <
20200909112742.25730-3-alex.bennee@linaro.org>