Add some more includes.

(It's a pain because we don't have it setup in CMake, but perhaps we
should have a builder for the configuration that doesn't have bcm.c.)

Change-Id: Ic408f0a86c9d42346244d6a7b7e9e664b58fc70c
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/52845
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
diff --git a/crypto/fipsmodule/ecdh/ecdh.c b/crypto/fipsmodule/ecdh/ecdh.c
index dfea1e1..25d0702 100644
--- a/crypto/fipsmodule/ecdh/ecdh.c
+++ b/crypto/fipsmodule/ecdh/ecdh.c
@@ -74,8 +74,9 @@
 #include <openssl/mem.h>
 #include <openssl/sha.h>
 
-#include "../ec/internal.h"
 #include "../../internal.h"
+#include "../ec/internal.h"
+#include "../service_indicator/internal.h"
 
 
 int ECDH_compute_key_fips(uint8_t *out, size_t out_len, const EC_POINT *pub_key,