Bump oat version to force recompile.

Bug: 14661374
Change-Id: I9492419c848a198909e0085358a45d7f4146630d
diff --git a/runtime/oat.cc b/runtime/oat.cc
index 11b6e4d..a1f4fd0 100644
--- a/runtime/oat.cc
+++ b/runtime/oat.cc
@@ -22,7 +22,7 @@
 namespace art {
 
 const uint8_t OatHeader::kOatMagic[] = { 'o', 'a', 't', '\n' };
-const uint8_t OatHeader::kOatVersion[] = { '0', '2', '6', '\0' };
+const uint8_t OatHeader::kOatVersion[] = { '0', '2', '7', '\0' };
 
 OatHeader::OatHeader() {
   memset(this, 0, sizeof(*this));