Fix pwmStop typo in keywords.txt

Signed-off-by: Brian Baltz <[email protected]>

Author: Brian Baltz

libraries/CurieTimerOne/keywords.txt

@@ -21,7 +21,7 @@ rdRstTickCount	KEYWORD2
 pause		KEYWORD2
 resume		KEYWORD2
 pwmStart	KEYWORD2
-pwdStop		KEYWORD2
+pwmStop		KEYWORD2
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 # Instances (KEYWORD2)
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