MIPS: Fix testcases r6_beqzc and mov.

src/mips64/assembler-mips64.cc

Index: src/mips64/assembler-mips64.cc
diff --git a/src/mips64/assembler-mips64.cc b/src/mips64/assembler-mips64.cc
index 5837e6dcf96454af0e3f720f96e14e6d573f76e3..cb5e164ff9ce3fae978c5250fbffacea82da7d68 100644
--- a/src/mips64/assembler-mips64.cc
+++ b/src/mips64/assembler-mips64.cc
@@ -2634,7 +2634,7 @@ void Assembler::mov_d(FPURegister fd, FPURegister fs) {
 
 
 void Assembler::mov_s(FPURegister fd, FPURegister fs) {
-  GenInstrRegister(COP1, S, f0, fs, fd, MOV_D);
+  GenInstrRegister(COP1, S, f0, fs, fd, MOV_S);
 }