games/scummvm: Unbreak build with FLUIDSYNTH=on

In file included from audio/softsynth/fluidsynth.cpp:38:
In file included from /usr/local/include/fluidsynth.h:105:
/usr/local/include/fluidsynth/log.h:82:25: error: expected ')'
attribute ((format (printf, 2, 3)))

^

./common/forbidden.h:62:16: note: expanded from macro 'printf'
#define printf FORBIDDEN_SYMBOL_REPLACEMENT

^

./common/forbidden.h:57:89: note: expanded from macro 'FORBIDDEN_SYMBOL_REPLACEMENT'
#define FORBIDDEN_SYMBOL_REPLACEMENT FORBIDDEN_look_at_common_forbidden_h_for_more_info SYMBOL !%*

           ^

PR: 243314