Repair for non-ECC OpenSSL.
Ifdef out the ECC parts when building with an OpenSSL that doesn't have
it.
diff --git a/monitor.c b/monitor.c
index 8f5ab72..4f9c9fe 100644
--- a/monitor.c
+++ b/monitor.c
@@ -1853,7 +1853,9 @@
kex->kex[KEX_DH_GRP14_SHA1] = kexdh_server;
kex->kex[KEX_DH_GEX_SHA1] = kexgex_server;
kex->kex[KEX_DH_GEX_SHA256] = kexgex_server;
+# ifdef OPENSSL_HAS_ECC
kex->kex[KEX_ECDH_SHA2] = kexecdh_server;
+# endif
#endif /* WITH_OPENSSL */
kex->kex[KEX_C25519_SHA256] = kexc25519_server;
kex->load_host_public_key=&get_hostkey_public_by_type;