Revert "Revert "Add JIT""

Added missing EntryPointToCodePointer.

This reverts commit a5ca888d715cd0c6c421313211caa1928be3e399.

Change-Id: Ia74df0ef3a7babbdcb0466fd24da28e304e3f5af
diff --git a/build/Android.common_build.mk b/build/Android.common_build.mk
index 3000cdf..f05ca87 100644
--- a/build/Android.common_build.mk
+++ b/build/Android.common_build.mk
@@ -48,6 +48,18 @@
 endif
 
 #
+# Used to enable JIT
+#
+ART_JIT := false
+ifneq ($(wildcard art/JIT_ART),)
+$(info Enabling ART_JIT because of existence of art/JIT_ART)
+ART_JIT := true
+endif
+ifeq ($(WITH_ART_JIT), true)
+ART_JIT := true
+endif
+
+#
 # Used to enable smart mode
 #
 ART_SMALL_MODE := false