Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index a71163f..9a54c8b 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -708,7 +708,7 @@
 		goto done;
 	}
 
-	/* BE was previously in promiscous mode; disable it */
+	/* BE was previously in promiscuous mode; disable it */
 	if (adapter->promiscuous) {
 		adapter->promiscuous = false;
 		be_cmd_promiscuous_config(adapter, adapter->port_num, 0);