Fix typos reported by codespell

net/ipforward/Make.defs

@@ -36,7 +36,7 @@ ifeq ($(CONFIG_NET_STATISTICS),y)
 NET_CSRCS += ipfwd_dropstats.c
 endif
 
-# Include IP forwaring build support
+# Include IP forwarding build support
 
 DEPPATH += --dep-path ipforward
 VPATH += :ipforward

net/local/local_connect.c

@@ -261,7 +261,7 @@ int psock_local_connect(FAR struct socket *psock,
       conn = (FAR struct local_conn_s *)dq_next(&conn->lc_node))
     {
       /* Anything in the listener list should be a stream socket in the
-       * istening state
+       * listening state
        */
 
       DEBUGASSERT(conn->lc_state == LOCAL_STATE_LISTENING &&

net/route/Kconfig

@@ -117,7 +117,7 @@ config ROUTE_FILEDIR
 	---help---
 		Provides the full path to location in the file system where routing
 		table will be accessed.  This is a string and should not include
-		any traling '/'.
+		any trailing '/'.
 
 config ROUTE_IPv6_CACHEROUTE
 	bool "In-memory IPv6 cache"