MAINTAINERS: Add Altera Arria10 System Resource Chip

Add maintainer for the Altera Arria10 Max5 System Resource chip files.

Signed-off-by: Thor Thayer <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

MAINTAINERS

···
 S:	Maintained
 F:	drivers/gpio/gpio-altera.c
 
+ALTERA SYSTEM RESOURCE DRIVER FOR ARRIA10 DEVKIT
+M:	Thor Thayer <[e-mail]>
+S:	Maintained
+F:	drivers/gpio/gpio-altera-a10sr.c
+F:	drivers/mfd/altera-a10sr.c
+F:	include/linux/mfd/altera-a10sr.h
+
 ALTERA TRIPLE SPEED ETHERNET DRIVER
 M:	Vince Bridgers <[e-mail]>
 L:	[e-mail]