Fix a copy/paste error that sneaked into the Kconfig description of the
Mediatek PWM driver.
Signed-off-by: NZhi Mao <zhi.mao@mediatek.com>
Acked-by: NJohn Crispin <john@phrozen.org>
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>