o tr: make CONFIG_TR depend on CONFIG_LLC=y

Also update help, clarifying that LLC is needed for Token Ring
Support.

Fixes one of the make allmodconfig undefined symbols report on lkml.

drivers/net/tokenring/Kconfig

@@ -2,13 +2,13 @@
 # Token Ring driver configuration
 #
 
-menu "Token Ring devices"
+menu "Token Ring devices (depends on LLC=y)"
 	depends on NETDEVICES
 
 # So far, we only have PCI, ISA, and MCA token ring devices
 config TR
 	bool "Token Ring driver support"
-	depends on PCI || ISA || MCA
+	depends on (PCI || ISA || MCA) && LLC=y
 	help
 	  Token Ring is IBM's way of communication on a local network; the
 	  rest of the world uses Ethernet. To participate on a Token Ring

net/Kconfig

@@ -266,14 +266,14 @@ config VLAN_8021Q
 	tristate "802.1Q VLAN Support"
 
 config LLC
-	tristate "ANSI/IEEE 802.2 Data link layer protocol (IPX, Appletalk)"
+	tristate "ANSI/IEEE 802.2 - aka LLC (IPX, Appletalk, Token Ring)"
 	help
-	  This is a Logical Link Layer protocol used for Appletalk, IPX and in
-	  the future by NetBEUI and by the linux-sna project. It originally
-	  came from Procom Inc. that released the code for 2.0.36 and was
-	  ported to 2.{4,5}. Select this if you want to have support for
-	  those protocols or if you want to have the sockets interface for
-	  LLC.
+	  This is a Logical Link Layer protocol used for Appletalk, IPX,
+	  Token Ring devices, the linux-sna.org project and in the future by
+	  NetBEUI. It originally came from Procom Inc. that released the code
+	  for 2.0.36 and was heavily modified to work with 2.{4,5}.
+	  Select this if you want to have support for those protocols or if
+	  you want to have the sockets interface for LLC.
 	  
 
 config LLC_UI