MAINTAINERS: Add myself as the dw-i3c-master module maintainer

Create for the DesignWare I3C master driver and add myself as the
maintainer of this driver.
Signed-off-by: Vitor Soares <vitor.soares@synopsys.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>

MAINTAINERS

@@ -6994,6 +6994,12 @@ F:	drivers/i3c/
 F:	include/linux/i3c/
 F:	include/dt-bindings/i3c/
 
+I3C DRIVER FOR SYNOPSYS DESIGNWARE
+M:	Vitor Soares <vitor.soares@synopsys.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
+F:	drivers/i3c/master/dw*
+
 IA64 (Itanium) PLATFORM
 M:	Tony Luck <tony.luck@intel.com>
 M:	Fenghua Yu <fenghua.yu@intel.com>