MAINTAINERS: Update Actions Semi section with SPS

Add file patterns to cover the SPS power domain driver and DT binding.
Signed-off-by: Andreas Färber <afaerber@suse.de>

MAINTAINERS

@@ -1046,7 +1046,11 @@ F:	arch/arm/mach-actions/
 F:	arch/arm/boot/dts/owl-*
 F:	arch/arm64/boot/dts/actions/
 F:	drivers/clocksource/owl-*
+F:	drivers/soc/actions/
+F:	include/dt-bindings/power/owl-*
+F:	include/linux/soc/actions/
 F:	Documentation/devicetree/bindings/arm/actions.txt
+F:	Documentation/devicetree/bindings/power/actions,owl-sps.txt
 F:	Documentation/devicetree/bindings/timer/actions,owl-timer.txt
 
 ARM/ADS SPHERE MACHINE SUPPORT