MAINTAINERS: Adds Andreas Werner to maintainers list for MEN F21BMC

Added maintainer for the following MEN F21BMC drivers:
	- menf21bmc (MFD)
	- menf21bmc_wdt (Watchdog)
	- menf21bmc_hwmon (HWMON)
	- leds-menf21bmc (LED)

Signed-off-by: Andreas Werner <andreas.werner@men.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Bryan Wu <cooloney@gmail.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

MAINTAINERS

@@ -5910,6 +5910,15 @@ S:	Supported
 F:	drivers/mcb/
 F:	include/linux/mcb.h
 
+MEN F21BMC (Board Management Controller)
+M:	Andreas Werner <andreas.werner@men.de>
+S:	Supported
+F:	drivers/mfd/menf21bmc.c
+F:	drivers/watchdog/menf21bmc_wdt.c
+F:	drivers/leds/leds-menf21bmc.c
+F:	drivers/hwmon/menf21bmc_hwmon.c
+F:	Documentation/hwmon/menf21bmc
+
 METAG ARCHITECTURE
 M:	James Hogan <james.hogan@imgtec.com>
 L:	linux-metag@vger.kernel.org