Fix fuzzer mode build.

Change-Id: If565a5fdfa0f314422aa26c2e8f869965ca08c1b
Reviewed-on: https://boringssl-review.googlesource.com/12969
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <alangley@gmail.com>
diff --git a/crypto/rand/deterministic.c b/crypto/rand/deterministic.c
index 36e99aa..d96a505 100644
--- a/crypto/rand/deterministic.c
+++ b/crypto/rand/deterministic.c
@@ -21,6 +21,7 @@
 #include <openssl/chacha.h>
 
 #include "internal.h"
+#include "../internal.h"
 
 
 /* g_num_calls is the number of calls to |CRYPTO_sysrand| that have occured.