MAINTAINERS: add myself as maintainer of Cadence I3C master controller driver

As discussed with Boris Brezillon - I'm adding myself as the maintainer.

Signed-off-by: Przemyslaw Gaj <[email protected]>
Signed-off-by: Boris Brezillon <[email protected]>

Author: pgajcdns

MAINTAINERS

@@ -7746,6 +7746,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
 F:	drivers/i3c/master/dw*
 
+I3C DRIVER FOR CADENCE I3C MASTER IP
+M:      Przemysław Gaj <[email protected]>
+S:      Maintained
+F:      Documentation/devicetree/bindings/i3c/cdns,i3c-master.txt
+F:      drivers/i3c/master/i3c-master-cdns.c
+
 IA64 (Itanium) PLATFORM
 M:	Tony Luck <[email protected]>
 M:	Fenghua Yu <[email protected]>