Macros in src/sd-sdl

• PUT_SOUND_BYTE src/sd-sdl/sound.h:23
• PUT_SOUND_BYTE_LEFT src/sd-sdl/sound.h:25
• PUT_SOUND_BYTE_RIGHT src/sd-sdl/sound.h:27
• PUT_SOUND_WORD src/sd-sdl/sound.h:24
• PUT_SOUND_WORD_LEFT src/sd-sdl/sound.h:26
• PUT_SOUND_WORD_RIGHT src/sd-sdl/sound.h:28