netconsole: do not depend on experimental

Nowadays, most distributions enable netconsole by default,
including RHEL, Fedora, Debian, Arch, Opensuse. And
we don't have any bug reports about it. So I think there
is no need to mark it as experimental any more.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: NWANG Cong <amwang@redhat.com>
Acked-by: NNeil Horman <nhorman@tuxdriver.com>
Acked-by: NMatt Mackall <mpm@selenic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/Kconfig

@@ -3252,15 +3252,14 @@ config NET_FC
 	  "SCSI generic support".
 
 config NETCONSOLE
-	tristate "Network console logging support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Network console logging support"
 	---help---
 	If you want to log kernel messages over the network, enable this.
 	See <file:Documentation/networking/netconsole.txt> for details.
 
 config NETCONSOLE_DYNAMIC
-	bool "Dynamic reconfiguration of logging targets (EXPERIMENTAL)"
-	depends on NETCONSOLE && SYSFS && EXPERIMENTAL
+	bool "Dynamic reconfiguration of logging targets"
+	depends on NETCONSOLE && SYSFS
 	select CONFIGFS_FS
 	help
 	  This option enables the ability to dynamically reconfigure target