[BRIDGE]: port timer initialization

Initialize the STP timers for a port when it is created,
rather than when it is enabled. This will prevent future race conditions
where timer gets started before port is enabled.

Signed-off-by: Stephen Hemminger <shemmigner@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc net/bridge/br_if.c
Simple merge

diff --cc net/bridge/br_stp_if.c
Simple merge