MAINTAINERS: Add maintainers for DWC AHCI SATA driver

Add myself as a maintainer of the new DWC AHCI SATA driver and
its DT-bindings schema.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

MAINTAINERS

@@ -11551,6 +11551,15 @@ F:	drivers/ata/ahci_platform.c
 F:	drivers/ata/libahci_platform.c
 F:	include/linux/ahci_platform.h
 
+LIBATA SATA AHCI SYNOPSYS DWC CONTROLLER DRIVER
+M:	Serge Semin <fancer.lancer@gmail.com>
+L:	linux-ide@vger.kernel.org
+S:	Maintained
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata.git
+F:	Documentation/devicetree/bindings/ata/baikal,bt1-ahci.yaml
+F:	Documentation/devicetree/bindings/ata/snps,dwc-ahci.yaml
+F:	drivers/ata/ahci_dwc.c
+
 LIBATA SATA PROMISE TX2/TX4 CONTROLLER DRIVER
 M:	Mikael Pettersson <mikpelinux@gmail.com>
 L:	linux-ide@vger.kernel.org