Convert driver to use PWM framework instead of calling dmtimer functions
directly for PWM timer. Remove paragraph about writing to the Free Software
Foundation's mailing address while at it.
Signed-off-by: NIvaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: NPali Rohár <pali.rohar@gmail.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>