[DO NOT MERGE] Revert "Restructed reference root of trust (2/3 DRM Cert)"

This reverts commit f6f5099604.

Reason for revert: Feature missed deadline

Bug: 135283522
Change-Id: Ic86930ee3444c5a6aa1d78ae3a12a9030c29ef92

libwvdrmengine/oemcrypto/ref/src/oemcrypto_engine_ref.h

@@ -8,16 +8,19 @@
 #define REF_OEMCRYPTO_ENGINE_REF_H_
 
 #include <stdint.h>
-
+#include <time.h>
 #include <map>
 #include <memory>
 #include <mutex>
 #include <vector>
 
+#include <openssl/rsa.h>
+
 #include "OEMCryptoCENC.h"
 #include "file_store.h"
 #include "oemcrypto_auth_ref.h"
 #include "oemcrypto_key_ref.h"
+#include "oemcrypto_rsa_key_shared.h"
 #include "oemcrypto_session.h"
 #include "oemcrypto_types.h"
 #include "oemcrypto_usage_table_ref.h"