The new common rockchip pinctrl driver does not support explicit
requests for a particular pinctrl function. As a result, the
board_init() function bails out early before enabling the boot-on
regulators. Fix this by simply removing the request for pwm0, pwm2
and pwm3. The generic DM code already does the necessary
configuration if necessary.
Reported-by: Levin Du <djw@t-chip.com.cn> Signed-of-by: Mark Kettenis <kettenis@openbsd.org>