Make it clear that SSL_OP_NO_DTLS* are the same as the TLS ones.

They're mapped to the same value, which is the only reason the tests work right
now.

Change-Id: I22f6e3a6b3a2c88b0f92b6d261e86111b4172cd6
Reviewed-on: https://boringssl-review.googlesource.com/2406
Reviewed-by: Adam Langley <agl@google.com>

include/openssl/ssl.h

@@ -480,8 +480,8 @@ struct ssl_session_st
 #define SSL_OP_NO_TLSv1_2				0x08000000L
 #define SSL_OP_NO_TLSv1_1				0x10000000L
 
-#define SSL_OP_NO_DTLSv1				0x04000000L
-#define SSL_OP_NO_DTLSv1_2				0x08000000L
+#define SSL_OP_NO_DTLSv1				SSL_OP_NO_TLSv1
+#define SSL_OP_NO_DTLSv1_2				SSL_OP_NO_TLSv1_2
 
 #define SSL_OP_NO_SSL_MASK (SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|\
 	SSL_OP_NO_TLSv1|SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1_2)