Reorganize system/keymaster.

This CL moves the includes that should be exported to include/ and
removes the trusty-specific code (some of which is moving to
hardware/google and some of which is moving to the trusty tree.)

Change-Id: Ie4fabf6b5c5f36b50c2f5ff356548ca2e9140fcb
diff --git a/asymmetric_key.cpp b/asymmetric_key.cpp
index d4cc226..26441de 100644
--- a/asymmetric_key.cpp
+++ b/asymmetric_key.cpp
@@ -17,11 +17,12 @@
 #include <openssl/evp.h>
 #include <openssl/x509.h>
 
+#include <keymaster/keymaster_defs.h>
+
 #include "asymmetric_key.h"
 #include "dsa_operation.h"
 #include "ecdsa_operation.h"
 #include "key_blob.h"
-#include "keymaster_defs.h"
 #include "openssl_utils.h"
 #include "rsa_operation.h"