Skip oprofile modules in the simulator build.

Change-Id: Ie18ec8109465e44ae2e14f953f013871c6979060
diff --git a/Android.mk b/Android.mk
index 5053e7d..56c23dd 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1 +1,3 @@
-include $(call all-subdir-makefiles)
+ifeq ($(TARGET_SIMULATOR),false)
+    include $(call all-subdir-makefiles)
+endif