[turbofan] Properly emit vsqrtsd if AVX is enabled.

src/compiler/x64/code-generator-x64.cc

Index: src/compiler/x64/code-generator-x64.cc
diff --git a/src/compiler/x64/code-generator-x64.cc b/src/compiler/x64/code-generator-x64.cc
index 4b5e5dc245bc25ba9beb444cdab359200f6e803e..b9247779931a47c9c74b125cba00d4c30e7a1b46 100644
--- a/src/compiler/x64/code-generator-x64.cc
+++ b/src/compiler/x64/code-generator-x64.cc
@@ -1454,7 +1454,7 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
       break;
     }
     case kSSEFloat64Sqrt:
-      ASSEMBLE_SSE_UNOP(sqrtsd);
+      ASSEMBLE_SSE_UNOP(Sqrtsd);
       break;
     case kSSEFloat64Round: {
       CpuFeatureScope sse_scope(masm(), SSE4_1);