#3624 Regression on play_music

[Konstantin Kim]

colecovision\play_music.c compiles to 15 bytes fatter binary.

SDCC : 4.3.2 #14235 (MINGW64)
sdcc -mmcs51 --opt-code-size --fverbose-asm -c play_music.c

compared with 4.2.2 #13384 (MINGW64)