trace_printk should not be used in production code, replace it
call with dev_dbg.
Signed-off-by: NNicolas Boichat <drinkcat@chromium.org>

Link: https://lore.kernel.org/r/20200627070307.516803-2-drinkcat@chromium.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>