network: fix typo

I was worried about backwards compat, but this was only added
in af94bb24b5, and can be changed
with impunity.

src/shared/bridge-util.c

@@ -7,7 +7,7 @@ static const char* const bridge_state_table[_NETDEV_BRIDGE_STATE_MAX] = {
         [NETDEV_BRIDGE_STATE_DISABLED]   = "disabled",
         [NETDEV_BRIDGE_STATE_LISTENING]  = "listening",
         [NETDEV_BRIDGE_STATE_LEARNING]   = "learning",
-        [NETDEV_BRIDGE_STATE_FORWARDING] = "forwading",
+        [NETDEV_BRIDGE_STATE_FORWARDING] = "forwarding",
 };
 
 DEFINE_STRING_TABLE_LOOKUP(bridge_state, BridgeState);