Pass USE_FUSE2 define to apfs-fuse build under macOS

As the OSXFUSE version of FUSE is v2, add the same call to
`target_compile_definitions` in the check for `APPLE` as for the
check against `USE_FUSE2` when `APPLE` isn't defined

CMakeLists.txt

@@ -120,6 +120,7 @@ if (APPLE)
 target_include_directories(apfs-fuse PRIVATE /usr/local/include/osxfuse/)
 # link_directories(/usr/local/lib/)
 target_link_libraries(apfs-fuse apfs /usr/local/lib/libosxfuse.dylib)
+target_compile_definitions(apfs-fuse PRIVATE USE_FUSE2)
 else()
 if (USE_FUSE3)
 target_link_libraries(apfs-fuse apfs fuse3)