libOpenMPT: configure cleanup, CONFLICTS instead of REPLACES
libOpenMPT: configure cleanup, CONFLICTS instead of REPLACES

haikuports/haikuports,Begasus/haikuports,nielx/haikuports,haikuports/haikuports,moochris/haikuports,Begasus/haikuports,nielx/haikuports,moochris/haikuports,Begasus/haikuports,Begasus/haikuports,nielx/haikuports,haikuports/haikuports,Begasus/haikuports,moochris/haikuports,haikuports/haikuports,haikuports/haikuports