MAINTAINERS: Add Manivannan Sadhasivam as PCI Endpoint reviewer

I've been reviewing the patches related to PCI Endpoint Subsystem for some
time. So I'd like to add myself as the reviewer to get immediate attention
to the patches.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Manivannan Sadhasivam <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Kishon Vijay Abraham I <[email protected]>

Author: Mani-Sadhasivam

MAINTAINERS

@@ -15682,6 +15682,7 @@ PCI ENDPOINT SUBSYSTEM
 M:	Kishon Vijay Abraham I <[email protected]>
 M:	Lorenzo Pieralisi <[email protected]>
 R:	Krzysztof Wilczyński <[email protected]>
+R:	Manivannan Sadhasivam <[email protected]>
 L:	[email protected]
 S:	Supported
 Q:	https://patchwork.kernel.org/project/linux-pci/list/