MIPS: Fix rounding in Uint8ClampedArray setter.

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 515685590eaadf5347dfbd2bb85b95281219e61e..d99fbdcaa4f426f4e140ca8bb3613d0c325c3f34 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -5398,7 +5398,7 @@ void MacroAssembler::ClampDoubleToUint8(Register result_reg,
 
   // In 0-255 range, round and truncate.
   bind(&in_bounds);
-  round_w_d(temp_double_reg, input_reg);
+  cvt_w_d(temp_double_reg, input_reg);
   mfc1(result_reg, temp_double_reg);
   bind(&done);
 }