hwmon: (pc87427) Add a maintainer

As I made significant changes to the pc87427 driver, I'll be
maintaining it for the year to come.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

MAINTAINERS

@@ -4402,6 +4402,13 @@ M:	Jim Cromie <jim.cromie@gmail.com>
 S:	Maintained
 F:	drivers/char/pc8736x_gpio.c
 
+PC87427 HARDWARE MONITORING DRIVER
+M:	Jean Delvare <khali@linux-fr.org>
+L:	lm-sensors@lm-sensors.org
+S:	Maintained
+F:	Documentation/hwmon/pc87427
+F:	drivers/hwmon/pc87427.c
+
 PCA9532 LED DRIVER
 M:	Riku Voipio <riku.voipio@iki.fi>
 S:	Maintained