power: supply: cpcap-charger: fix repeated words in comments

Delete the redundant word 'on'.
Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/cpcap-charger.c

@@ -5,7 +5,7 @@
  * Copyright (C) 2017 Tony Lindgren <tony@atomide.com>
  *
  * Rewritten for Linux power framework with some parts based on
- * on earlier driver found in the Motorola Linux kernel:
+ * earlier driver found in the Motorola Linux kernel:
  *
  * Copyright (C) 2009-2010 Motorola, Inc.
  */