ART: Move JNI files to runtime/jni/ .

Test: Rely on TreeHugger.
Change-Id: I9cae11191ef1567ae9453be498882a7767285140
diff --git a/compiler/driver/compiler_driver.cc b/compiler/driver/compiler_driver.cc
index fbbb4e9..39ed825 100644
--- a/compiler/driver/compiler_driver.cc
+++ b/compiler/driver/compiler_driver.cc
@@ -57,7 +57,7 @@
 #include "gc/space/space.h"
 #include "handle_scope-inl.h"
 #include "intrinsics_enum.h"
-#include "jni_internal.h"
+#include "jni/jni_internal.h"
 #include "linker/linker_patch.h"
 #include "mirror/class-inl.h"
 #include "mirror/class_loader.h"