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/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 26734e5..88fa7fd 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -628,8 +628,8 @@
 				 (u32)ATH_AMPDU_LIMIT_MAX);
 
 	/*
-	 * h/w can accept aggregates upto 16 bit lengths (65535).
-	 * The IE, however can hold upto 65536, which shows up here
+	 * h/w can accept aggregates up to 16 bit lengths (65535).
+	 * The IE, however can hold up to 65536, which shows up here
 	 * as zero. Ignore 65536 since we  are constrained by hw.
 	 */
 	if (tid->an->maxampdu)