accessibility: speakup: Fix spelling mistake "thw" -> "the"

There is a spelling mistake in the module parameter description
for say_word_ctl and an extra space. Fix the spelling mistake and
remove the extraneous space.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://lore.kernel.org/r/20221207095202.2282567-1-colin.i.king@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>