llc: fix non-const printk warning

Mark some strings as const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 56fd85a..febae70 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -1118,11 +1118,11 @@
 	.sendpage    = sock_no_sendpage,
 };
 
-static char llc_proc_err_msg[] __initdata =
+static const char llc_proc_err_msg[] __initconst =
 	KERN_CRIT "LLC: Unable to register the proc_fs entries\n";
-static char llc_sysctl_err_msg[] __initdata =
+static const char llc_sysctl_err_msg[] __initconst =
 	KERN_CRIT "LLC: Unable to register the sysctl entries\n";
-static char llc_sock_err_msg[] __initdata =
+static const char llc_sock_err_msg[] __initconst =
 	KERN_CRIT "LLC: Unable to register the network family\n";
 
 static int __init llc2_init(void)