Add DTLS fuzzers.

Bug: 124
Change-Id: Iff02be9df2806572e6d3f860b448f598f85778c3
Reviewed-on: https://boringssl-review.googlesource.com/20107
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>

fuzz/server.cc

diff --git a/fuzz/server.cc b/fuzz/server.cc
index 1d5c7b9..9f8cee2 100644
--- a/fuzz/server.cc
+++ b/fuzz/server.cc
@@ -15,7 +15,7 @@
 #include "../ssl/test/fuzzer.h"
 
 
-static TLSFuzzer g_fuzzer(TLSFuzzer::kServer);
+static TLSFuzzer g_fuzzer(TLSFuzzer::kTLS, TLSFuzzer::kServer);
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
   return g_fuzzer.TestOneInput(buf, len);