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/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index bfab140..477e066 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -205,7 +205,7 @@
 	.probe    = e1000_probe,
 	.remove   = __devexit_p(e1000_remove),
 #ifdef CONFIG_PM
-	/* Power Managment Hooks */
+	/* Power Management Hooks */
 	.suspend  = e1000_suspend,
 	.resume   = e1000_resume,
 #endif