MAINTAINERS: Add Sergio Paracuellos as MT7621 PCIe maintainer

Add myself as maintainer of the PCIe Controller driver for MT7621 SoCs.

Link: https://lore.kernel.org/r/20210922050035.18162-4-sergio.paracuellos@gmail.comSigned-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

MAINTAINERS

@@ -11842,6 +11842,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/i2c/i2c-mt7621.txt
 F:	drivers/i2c/busses/i2c-mt7621.c
 
+MEDIATEK MT7621 PCIE CONTROLLER DRIVER
+M:	Sergio Paracuellos <sergio.paracuellos@gmail.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml
+F:	drivers/pci/controller/pcie-mt7621.c
+
 MEDIATEK MT7621 PHY PCI DRIVER
 M:	Sergio Paracuellos <sergio.paracuellos@gmail.com>
 S:	Maintained