ART: Move DexCache arrays to native.

This CL has a companion CL in libcore/
    https://android-review.googlesource.com/162985

Change-Id: Icbc9e20ad1b565e603195b12714762bb446515fa
diff --git a/runtime/image.cc b/runtime/image.cc
index 8df17c6..42b348a 100644
--- a/runtime/image.cc
+++ b/runtime/image.cc
@@ -24,7 +24,7 @@
 namespace art {
 
 const uint8_t ImageHeader::kImageMagic[] = { 'a', 'r', 't', '\n' };
-const uint8_t ImageHeader::kImageVersion[] = { '0', '2', '0', '\0' };
+const uint8_t ImageHeader::kImageVersion[] = { '0', '2', '1', '\0' };
 
 ImageHeader::ImageHeader(uint32_t image_begin,
                          uint32_t image_size,