Rename compiler_llvm CompilationUnit to LlvmCompilationUnit

Also fixed stray ART_TEST_CFLAGS to LOCAL_CFLAGS
Also fixed relative includes

Tried to change CompilationUnit to reference LlvmCompilationUnit, but
that causes issues because of the split libart-compiler
libart-compiler-llvm.

Change-Id: I7a490f339add6355a20c1cedae858ccf6967a6aa
diff --git a/src/compiler/codegen/x86/target_x86.cc b/src/compiler/codegen/x86/target_x86.cc
index e396e54..6cb420c 100644
--- a/src/compiler/codegen/x86/target_x86.cc
+++ b/src/compiler/codegen/x86/target_x86.cc
@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
-#include "../../compiler_internals.h"
-#include "x86_lir.h"
 #include "codegen_x86.h"
-#include "../ralloc_util.h"
-#include "../codegen_util.h"
+#include "compiler/codegen/codegen_util.h"
+#include "compiler/compiler_internals.h"
+#include "compiler/codegen/ralloc_util.h"
+#include "x86_lir.h"
 
 #include <string>