MAINTAINERS: Add Vignesh Raghavendra as maintainer of TI DRA7XX/J721E PCI driver

Add Vignesh Raghavendra as maintainer of TI DRA7XX/J721E PCI driver.

Link: https://lore.kernel.org/r/20220928093105.23073-1-kishon@ti.com


Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>