Correct relative path.

This path has always had one-too-few “..” elements since the file first
appeared, but everyone seems to have lived with it, presumably because
/include is in the search path and the compiler tries relative to that.

Change-Id: I30006209ad74d064ded5dd2cd34b1f14806dcffe
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/38344
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>

third_party/sike/utils.h

diff --git a/third_party/sike/utils.h b/third_party/sike/utils.h
index cbc8329..bc806da 100644
--- a/third_party/sike/utils.h
+++ b/third_party/sike/utils.h
@@ -9,7 +9,7 @@
 
 #include <openssl/base.h>
 
-#include "../crypto/internal.h"
+#include "../../crypto/internal.h"
 #include "sike.h"
 
 // Conversion macro from number of bits to number of bytes