Add rockchip,rk3128-pwm compatible string.
Signed-off-by: NJohan Jonker <jbx6244@gmail.com>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>