crypto/newhope: add OPENSSL_EXPORT to functions used by tests.

Change-Id: Ie6701d6ea809f5c590f0773cb4b733a208553879
diff --git a/include/openssl/newhope.h b/include/openssl/newhope.h
index 657b0c3..a17324a 100644
--- a/include/openssl/newhope.h
+++ b/include/openssl/newhope.h
@@ -91,11 +91,11 @@
 
 /* NEWHOPE_POLY_noise sets |r| to a random polynomial where the coefficients are
  * sampled from the noise distribution. */
-void NEWHOPE_POLY_noise(NEWHOPE_POLY* r);
+OPENSSL_EXPORT void NEWHOPE_POLY_noise(NEWHOPE_POLY* r);
 
 /* NEWHOPE_POLY_noise_ntt sets |r| to an output of NEWHOPE_POLY_noise, and then
  * applies NTT(r) in-place. */
-void NEWHOPE_POLY_noise_ntt(NEWHOPE_POLY* r);
+OPENSSL_EXPORT void NEWHOPE_POLY_noise_ntt(NEWHOPE_POLY* r);
 
 /* NEWHOPE_offer_computation is the work of |NEWHOPE_offer|, less the encoding
  * parts.  The inputs are the noise polynomials |s| and |e|, and random