Added few more SIMD extensions for x86/x86_64 (SSE).

Rationale:
Prototype ART vectorizer needs way to set invariant vectors.

Test: assembler_x86[_64]_test
Bug: 34083438
Change-Id: I5ab2ad77b8f9b64b46cc8635ad926e54787508a2
diff --git a/compiler/utils/x86_64/assembler_x86_64.h b/compiler/utils/x86_64/assembler_x86_64.h
index 5923a41..e140b45 100644
--- a/compiler/utils/x86_64/assembler_x86_64.h
+++ b/compiler/utils/x86_64/assembler_x86_64.h
@@ -495,6 +495,9 @@
   void orpd(XmmRegister dst, XmmRegister src);
   void orps(XmmRegister dst, XmmRegister src);
 
+  void shufpd(XmmRegister dst, XmmRegister src, const Immediate& imm);
+  void shufps(XmmRegister dst, XmmRegister src, const Immediate& imm);
+
   void flds(const Address& src);
   void fstps(const Address& dst);
   void fsts(const Address& dst);