Add missing #include of <openssl/err.h>.

Change-Id: Ib2ce220e31a4f808999934197a7f43b8723131e8
Reviewed-on: https://boringssl-review.googlesource.com/27884
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
diff --git a/crypto/fipsmodule/ec/felem.c b/crypto/fipsmodule/ec/felem.c
index d32ff23..9be9f8c 100644
--- a/crypto/fipsmodule/ec/felem.c
+++ b/crypto/fipsmodule/ec/felem.c
@@ -13,6 +13,7 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
 
 #include <openssl/ec.h>
+#include <openssl/err.h>
 
 #include <assert.h>
 
diff --git a/crypto/fipsmodule/ec/scalar.c b/crypto/fipsmodule/ec/scalar.c
index aa364de..c1bbc6c 100644
--- a/crypto/fipsmodule/ec/scalar.c
+++ b/crypto/fipsmodule/ec/scalar.c
@@ -13,6 +13,7 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
 
 #include <openssl/ec.h>
+#include <openssl/err.h>
 
 #include "internal.h"
 #include "../bn/internal.h"