d97a9d7a ("staging/speakup: Add inflection synth parameter")
introduced the inflection parameter, but happened to drop the pitch
parameter from the dectlk driver. This restores it.

Cc: stable@vger.kernel.org
Fixes: d97a9d7a ("staging/speakup: Add inflection synth parameter")
Signed-off-by: NSamuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://lore.kernel.org/r/20220206015626.aesbhvvdkmqsrbaw@beginSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>