Merge pull request #438 from Tarask1n/fix_rtp_decoder_policy_init

Fix rtp_decoder policy init on Raspbian OS
diff --git a/test/rtp_decoder.c b/test/rtp_decoder.c
index d718a2b..55b7043 100644
--- a/test/rtp_decoder.c
+++ b/test/rtp_decoder.c
@@ -120,7 +120,7 @@
     struct bpf_program fp;
     char filter_exp[MAX_FILTER] = "";
     rtp_decoder_t dec;
-    srtp_policy_t policy;
+    srtp_policy_t policy = { { 0 } };
     srtp_err_status_t status;
     int len;
     int expected_len;