MAINTAINERS: Adjust Qualcomm driver globbing

The only drivers matching pm8???-* are two levels deep, adjust the glob
to match them.

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20230529-pm8941-pwrkey-debounce-v1-1-c043a6d5c814@linaro.org


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>