ART: Use __ANDROID__ instead of HAVE_ANDROID_OS

Use the proper define.

Change-Id: I71e291ac25f5d5f0187ac9b6ef2d6872f19e6085
diff --git a/compiler/optimizing/optimizing_cfi_test.cc b/compiler/optimizing/optimizing_cfi_test.cc
index fe3bb1a..f455571 100644
--- a/compiler/optimizing/optimizing_cfi_test.cc
+++ b/compiler/optimizing/optimizing_cfi_test.cc
@@ -29,7 +29,7 @@
 namespace art {
 
 // Run the tests only on host.
-#ifndef HAVE_ANDROID_OS
+#ifndef __ANDROID__
 
 class OptimizingCFITest : public CFITest {
  public:
@@ -125,6 +125,6 @@
 TEST_ISA(kX86)
 TEST_ISA(kX86_64)
 
-#endif  // HAVE_ANDROID_OS
+#endif  // __ANDROID__
 
 }  // namespace art