Fix portable + mips build.

Change-Id: Ia200e582b04c84973281e12331777351feb8a401
diff --git a/runtime/globals.h b/runtime/globals.h
index 10426b0..1a25dfa 100644
--- a/runtime/globals.h
+++ b/runtime/globals.h
@@ -73,8 +73,14 @@
 const bool kIsTargetBuild = false;
 #endif
 
+#if defined(ART_USE_PORTABLE_COMPILER)
+constexpr bool kUsePortableCompiler = true;
+#else
+constexpr bool kUsePortableCompiler = false;
+#endif
+
 // Garbage collector constants.
-static constexpr bool kMovingCollector = false;
+static constexpr bool kMovingCollector = false && !kUsePortableCompiler;
 // True if we allow moving classes.
 static constexpr bool kMovingClasses = false;
 // True if we allow moving fields.