kbuild: fix data path
kbuild: fix data path

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