Fix multiple inclusion guards to match new pathnames

Change-Id: Id7735be1d75bc315733b1773fba45c1deb8ace43
diff --git a/compiler/elf_writer_mclinker.h b/compiler/elf_writer_mclinker.h
index 21f23e1..468fa9a 100644
--- a/compiler/elf_writer_mclinker.h
+++ b/compiler/elf_writer_mclinker.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef ART_SRC_ELF_WRITER_MCLINKER_H_
-#define ART_SRC_ELF_WRITER_MCLINKER_H_
+#ifndef ART_COMPILER_ELF_WRITER_MCLINKER_H_
+#define ART_COMPILER_ELF_WRITER_MCLINKER_H_
 
 #include "elf_writer.h"
 
@@ -96,4 +96,4 @@
 
 }  // namespace art
 
-#endif  // ART_SRC_ELF_WRITER_MCLINKER_H_
+#endif  // ART_COMPILER_ELF_WRITER_MCLINKER_H_