Keystore 2.0: Make keystore2 early boot ready.

Test: Keystore starts early and quickly without panicking.
Change-Id: I1c694e5b45a0f15075c625bb4d0604c6e17588f9
diff --git a/keystore2/src/vintf/vintf.hpp b/keystore2/src/vintf/vintf.hpp
index 4d2c905..75e80f6 100644
--- a/keystore2/src/vintf/vintf.hpp
+++ b/keystore2/src/vintf/vintf.hpp
@@ -23,8 +23,9 @@
 
 char** getHalNames(size_t* len);
 char** getHalNamesAndVersions(size_t* len);
+char** getAidlInstances(size_t* len, const char* package, size_t version,
+                        const char* interfaceName);
 void freeNames(char** names, size_t len);
-
 }
 
 #endif  //  __VINTF_H__