net: mark read-only arrays as const

String literals are constant, and usually, we can also tag the array
of pointers const too, moving it to the .rodata section.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/llc/llc_proc.c

@@ -143,7 +143,7 @@ out:
 	return 0;
 }
 
-static char *llc_conn_state_names[] = {
+static const char *const llc_conn_state_names[] = {
 	[LLC_CONN_STATE_ADM] =        "adm",
 	[LLC_CONN_STATE_SETUP] =      "setup",
 	[LLC_CONN_STATE_NORMAL] =     "normal",