Fix various typos, scattered over the code.
Spelling corrections for (among other things):
* environment
* override
* variable
* ftd (should be "fdt", for flattened device tree)
* embedded
* FTDI
* emulation
* controller
diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c
index 443a4da..2fa2016 100644
--- a/drivers/net/sh_eth.c
+++ b/drivers/net/sh_eth.c
@@ -1,5 +1,5 @@
/*
- * sh_eth.c - Driver for Renesas ethernet controler.
+ * sh_eth.c - Driver for Renesas ethernet controller.
*
* Copyright (C) 2008, 2011 Renesas Solutions Corp.
* Copyright (c) 2008, 2011, 2014 2014 Nobuhiro Iwamatsu