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/s2io.h b/drivers/net/s2io.h
index 7d16030..2d14497 100644
--- a/drivers/net/s2io.h
+++ b/drivers/net/s2io.h
@@ -376,7 +376,7 @@
 /* Maintains Per FIFO related information. */
 struct tx_fifo_config {
 #define	MAX_AVAILABLE_TXDS	8192
-	u32 fifo_len;		/* specifies len of FIFO upto 8192, ie no of TxDLs */
+	u32 fifo_len;		/* specifies len of FIFO up to 8192, ie no of TxDLs */
 /* Priority definition */
 #define TX_FIFO_PRI_0               0	/*Highest */
 #define TX_FIFO_PRI_1               1