[NET]: Move in_aton from net/ipv4/utils.c to net/core/utils.c

Move in_aton to allow netpoll and pktgen to work without the rest of
the IPv4 stack. Fix whitespace and add comment for the odd placement.

Delete now-empty net/ipv4/utils.c

Re-enable netpoll/netconsole without CONFIG_INET

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 51ef8a0..8a835eb 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2540,7 +2540,7 @@
 
 config NETCONSOLE
 	tristate "Network console logging support (EXPERIMENTAL)"
-	depends on INET && EXPERIMENTAL
+	depends on EXPERIMENTAL
 	---help---
 	If you want to log kernel messages over the network, enable this.
 	See <file:Documentation/networking/netconsole.txt> for details.