MAINTAINERS: Update Intel RDMA RNIC driver maintainers

Signed-off-by: NShiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: NFaisal Latif <faisal.latif@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

MAINTAINERS

@@ -6376,10 +6376,7 @@ F:	drivers/net/ethernet/intel/*/
 
 INTEL RDMA RNIC DRIVER
 M:     Faisal Latif <faisal.latif@intel.com>
-R:     Chien Tin Tung <chien.tin.tung@intel.com>
-R:     Mustafa Ismail <mustafa.ismail@intel.com>
-R:     Shiraz Saleem <shiraz.saleem@intel.com>
-R:     Tatyana Nikolova <tatyana.e.nikolova@intel.com>
+M:     Shiraz Saleem <shiraz.saleem@intel.com>
 L:     linux-rdma@vger.kernel.org
 S:     Supported
 F:     drivers/infiniband/hw/i40iw/