[TIPC] Group protocols with sub-options in Kconfig

This is just a cosmetic change that moves the TIPC configuration
entry next to the other protocols that also have sub-options.
Makes the the networking options menu look a bit better.

Signed-off-by: Per Liden <per.liden@ericsson.com>

net/Kconfig

@@ -150,6 +150,7 @@ endif
 
 source "net/dccp/Kconfig"
 source "net/sctp/Kconfig"
+source "net/tipc/Kconfig"
 source "net/atm/Kconfig"
 source "net/bridge/Kconfig"
 source "net/8021q/Kconfig"
@@ -159,7 +160,6 @@ source "net/ipx/Kconfig"
 source "drivers/net/appletalk/Kconfig"
 source "net/x25/Kconfig"
 source "net/lapb/Kconfig"
-source "net/tipc/Kconfig"
 
 config NET_DIVERT
 	bool "Frame Diverter (EXPERIMENTAL)"