BORINGSSL_UNSAFE_FUZZER_MODE implies BORINGSSL_UNSAFE_DETERMINISTIC_MODE.

We have at least three different external build definitions for the
fuzzers. That's enough that requiring each of them account for the split
fuzzer mode is probably too much turbulence.

Change-Id: I96dbb12a2b4f70bfa1b04cd0d15fda918bbf51d6
Reviewed-on: https://boringssl-review.googlesource.com/12183
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>

include/openssl/base.h

@@ -189,6 +189,10 @@ extern "C" {
 #define OPENSSL_MSVC_PRAGMA(arg)
 #endif
 
+#if defined(BORINGSSL_UNSAFE_FUZZER_MODE) && \
+    !defined(BORINGSSL_UNSAFE_DETERMINISTIC_MODE)
+#define BORINGSSL_UNSAFE_DETERMINISTIC_MODE
+#endif
 
 /* CRYPTO_THREADID is a dummy value. */
 typedef int CRYPTO_THREADID;