iwlegacy: rename remaining IWLs to ILs

Also rename config names IWLWIFI_LEGACY to IWLEGACY

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
diff --git a/drivers/net/wireless/iwlegacy/iwl-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-debugfs.c
index cd15e67..736b00b 100644
--- a/drivers/net/wireless/iwlegacy/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlegacy/iwl-debugfs.c
@@ -535,7 +535,7 @@
 			"\tLast Restarting Code:  0x%X\n",
 			il->isr_stats.err_code);
 	}
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
+#ifdef CONFIG_IWLEGACY_DEBUG
 	pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 		il->isr_stats.sch);
 	pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",