sdl2_ttf: fix dependencies.
sdl2_ttf: fix dependencies.

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