pwm: lpc17xx: clearly mark CHANNEL0 as reserved for PWM period use
pwm: lpc17xx: clearly mark CHANNEL0 as reserved for PWM period use

mcoffin/zinc,phil-opp/zinc,phil-opp/zinc,posborne/zinc,richo/zinc,phil-opp/zinc,hackndev/zinc,hackndev/zinc,richo/zinc,troplin/zinc,phil-opp/zinc,posborne/zinc,mcoffin/zinc,richo/zinc,richo/zinc,phil-opp/zinc,posborne/zinc,troplin/zinc,mcoffin/zinc,ntwyman/zinc,farcaller/zinc,mcoffin/zinc,ntwyman/zinc,hackndev/zinc,posborne/zinc,ntwyman/zinc,troplin/zinc,troplin/zinc,farcaller/zinc,farcaller/zinc,ntwyman/zinc,posborne/zinc,mcoffin/zinc,hackndev/zinc,hackndev/zinc,richo/zinc,farcaller/zinc,troplin/zinc,farcaller/zinc,ntwyman/zinc