unittests: Adds tests for CLWB and CLFLUSHOPT

unittests/ASM/Secondary/CLFLUSHOPT.asm

@@ -0,0 +1,14 @@
+%ifdef CONFIG
+{
+  "RegData": {
+    "RAX": "1"
+  }
+}
+%endif
+
+mov rdx, 0xe0000000
+; Just ensures the code is executed.
+clflushopt [rdx]
+
+mov rax, 1
+hlt

unittests/ASM/Secondary/CLWB.asm

@@ -0,0 +1,14 @@
+%ifdef CONFIG
+{
+  "RegData": {
+    "RAX": "1"
+  }
+}
+%endif
+
+mov rdx, 0xe0000000
+; Just ensures the code is executed.
+clwb [rdx]
+
+mov rax, 1
+hlt