MAINTAINERS: Add Nirmal Patel as VMD maintainer

Change my email to my unaffiliated address and move me to reviewer status.

Link: https://lore.kernel.org/r/20210909200221.29981-1-jonathan.derrick@intel.com
Signed-off-by: Jon Derrick <jonathan.derrick@linux.dev>
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Nirmal Patel <nirmal.patel@linux.intel.com>

Author: Jon Derrick

MAINTAINERS

@@ -14342,7 +14342,8 @@ F:	Documentation/devicetree/bindings/pci/intel,ixp4xx-pci.yaml
 F:	drivers/pci/controller/pci-ixp4xx.c
 
 PCI DRIVER FOR INTEL VOLUME MANAGEMENT DEVICE (VMD)
-M:	Jonathan Derrick <jonathan.derrick@intel.com>
+M:	Nirmal Patel <nirmal.patel@linux.intel.com>
+R:	Jonathan Derrick <jonathan.derrick@linux.dev>
 L:	linux-pci@vger.kernel.org
 S:	Supported
 F:	drivers/pci/controller/vmd.c