We are assuming that PWM need use the property, we can support the
SPI interrupts for PWM.
At the moment, we can find the remotectl pwm is needed on box.
We can add the property for all PWMs. AFAIK, the pwm driver don't use it
but the drivers/input/remotectl/rockchip_pwm_remotectl.c
Change-Id: Ia223e6cc0e882477614b555bd09c86fd4bf8dbd7
Signed-off-by: Firefly <service@t-firefly.com>
(cherry picked from commit 16b7b284618d1652e694f6286f575ce82f5f03e5)
6fcc0c2363