Add EngineMsfa.o to Makefile

src/Makefile

@@ -8,7 +8,7 @@ CMSIS_DIR = ../CMSIS_5/CMSIS
 
 OBJS = main.o kernel.o minidexed.o config.o userinterface.o uimenu.o \
        mididevice.o midikeyboard.o serialmididevice.o pckeyboard.o \
-       sysexfileloader.o performanceconfig.o perftimer.o \
+       sysexfileloader.o performanceconfig.o perftimer.o EngineMsfa.o \
        effect_compressor.o effect_platervbstereo.o uibuttons.o midipin.o
 
 OPTIMIZE = -O3