The modem traces collection is a device (and so driver) specific option.
Therefore, move the related debugfs files into a driver-specific
subdirectory under the common per WWAN device directory.
Signed-off-by: NSergey Ryazanov <ryazanov.s.a@gmail.com>
Reviewed-by: NLoic Poulain <loic.poulain@linaro.org>
Acked-by: NM Chetan Kumar <m.chetan.kumar@intel.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>