Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/ide/cy82c693.c b/drivers/ide/cy82c693.c
index 9383f67..3be60da 100644
--- a/drivers/ide/cy82c693.c
+++ b/drivers/ide/cy82c693.c
@@ -67,7 +67,7 @@
 
 	/*
 	 * note: below we set the value for Bus Master IDE TimeOut Register
-	 * I'm not absolutly sure what this does, but it solved my problem
+	 * I'm not absolutely sure what this does, but it solved my problem
 	 * with IDE DMA and sound, so I now can play sound and work with
 	 * my IDE driver at the same time :-)
 	 *