Fix a missing initializer that only Clang warns about.

89d4a68c introduced -Wmissing-field-initializers because it seemed
generally useful. However, Clang and GCC have differing opinions about
what counts as missing. This change should make Clang happy too.

Change-Id: I070c719f5c47f537207200d5399e093cc083e58f

ssl/d1_srtp.c

diff --git a/ssl/d1_srtp.c b/ssl/d1_srtp.c
index 628bb29..115bd70 100644
--- a/ssl/d1_srtp.c
+++ b/ssl/d1_srtp.c
@@ -133,7 +133,7 @@
     {
         "SRTP_AES128_CM_SHA1_32", SRTP_AES128_CM_SHA1_32,
     },
-    {0},
+    {0, 0},
 };
 
 static int find_profile_by_name(const char *profile_name,