fftw: fix REQUIRES_devel
fftw: fix REQUIRES_devel

miqlas/haikuports,moochris/haikuports,nielx/haikuports,Begasus/haikuports,nielx/haikuports,haikuports/haikuports,Begasus/haikuports,nielx/haikuports,haikuports/haikuports,Begasus/haikuports,koletzky/haikuports,haikuports/haikuports,koletzky/haikuports,koletzky/haikuports,moochris/haikuports,Begasus/haikuports,miqlas/haikuports,moochris/haikuports,Begasus/haikuports,miqlas/haikuports,haikuports/haikuports,haikuports/haikuports