MAINTAINERS: Update Broadcom RDMA maintainers

Updating the maintainers file as Devesh decidied to leave Broadcom.

Link: https://lore.kernel.org/r/1624436089-28263-1-git-send-email-selvin.xavier@broadcom.comSigned-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

MAINTAINERS

@@ -3735,7 +3735,6 @@ F:	drivers/gpio/gpio-bcm-kona.c
 
 BROADCOM NETXTREME-E ROCE DRIVER
 M:	Selvin Xavier <selvin.xavier@broadcom.com>
-M:	Devesh Sharma <devesh.sharma@broadcom.com>
 M:	Naresh Kumar PBS <nareshkumar.pbs@broadcom.com>
 L:	linux-rdma@vger.kernel.org
 S:	Supported
@@ -6727,7 +6726,6 @@ F:	drivers/net/ethernet/emulex/benet/
 
 EMULEX ONECONNECT ROCE DRIVER
 M:	Selvin Xavier <selvin.xavier@broadcom.com>
-M:	Devesh Sharma <devesh.sharma@broadcom.com>
 L:	linux-rdma@vger.kernel.org
 S:	Odd Fixes
 W:	http://www.broadcom.com