MAINTAINERS: Add Pratyush Anand as SPEAr13xx and DesignWare PCIe maintainer

Didn't add myself as Maintainer earlier, as I was moving out of ST
and didn't had a board to test. But learnt recently that, it's fine being
in MAINTAINERS in such situations, at least I can review the patches.

So, let me add myself.
Signed-off-by: Pratyush Anand <pratyush.anand@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>

MAINTAINERS

@@ -7547,6 +7547,7 @@ F:	drivers/pci/host/pci-exynos.c
 
 PCI DRIVER FOR SYNOPSIS DESIGNWARE
 M:	Jingoo Han <jg1.han@samsung.com>
+M:	Pratyush Anand <pratyush.anand@gmail.com>
 L:	linux-pci@vger.kernel.org
 S:	Maintained
 F:	drivers/pci/host/*designware*
@@ -7560,8 +7561,9 @@ F:	Documentation/devicetree/bindings/pci/host-generic-pci.txt
 F:	drivers/pci/host/pci-host-generic.c
 
 PCIE DRIVER FOR ST SPEAR13XX
+M:	Pratyush Anand <pratyush.anand@gmail.com>
 L:	linux-pci@vger.kernel.org
-S:	Orphan
+S:	Maintained
 F:	drivers/pci/host/*spear*
 
 PCMCIA SUBSYSTEM