staging: media: lirc: modify print calls

This patches replaces one pr_debug call by dev_dbg and
changes the device used by one of the dev_err calls.

Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>