serial: qcom-geni: drop unused receive parameter

Serial drivers should not be dropping characters themselves, but at
least drop the unused 'drop' parameter from the receive handler for now.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20241009145110.16847-9-johan+linaro@kernel.org


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