Add the newly introduced pwm driver to the existing PolarFire SoC entry.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>