loss_interval: Fix timeval initialisation

When compiling with EXTRA_CFLAGS=-W noticed that tstamp is not initialised
correctly in dccp_li_calc_first_li.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz>

net/dccp/ccids/ccid3.c

@@ -829,7 +829,7 @@ static u32 ccid3_hc_rx_calc_first_li(struct sock *sk)
 	struct dccp_rx_hist_entry *entry, *next, *tail = NULL;
 	u32 x_recv, p;
 	suseconds_t rtt, delta;
-	struct timeval tstamp = { 0, };
+	struct timeval tstamp = { 0, 0 };
 	int interval = 0;
 	int win_count = 0;
 	int step = 0;