MAINTAINERS: GENET & SYSTEMPORT: Add internal Broadcom list

There is a patchwork instance behind bcm-kernel-feedback-list that is
helpful to track submissions, add this list for the Broadcom GENET and
SYSTEMPORT drivers.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/MAINTAINERS b/MAINTAINERS
index f470eb4..c394519 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3143,6 +3143,7 @@
 BROADCOM GENET ETHERNET DRIVER
 M:	Doug Berger <opendmb@gmail.com>
 M:	Florian Fainelli <f.fainelli@gmail.com>
+L:	bcm-kernel-feedback-list@broadcom.com
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/broadcom/genet/
@@ -3250,6 +3251,7 @@
 
 BROADCOM SYSTEMPORT ETHERNET DRIVER
 M:	Florian Fainelli <f.fainelli@gmail.com>
+L:	bcm-kernel-feedback-list@broadcom.com
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/broadcom/bcmsysport.*