fix record mixing merge conflicts

ld_script.txt

@@ -144,6 +144,7 @@ SECTIONS {
         src/naming_screen.o(.text);
         src/money.o(.text);
         asm/contest_effect.o(.text);
+        src/record_mixing.o(.text);
         asm/record_mixing.o(.text);
         src/secret_base.o(.text);
         src/tv.o(.text);