MAINTAINERS: brcmnand: Add co-maintainer for Broadcom SoCs

Adding myself as co-maintainer of nand controller driver
for the Broadcom SoCs.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

MAINTAINERS

@@ -2449,6 +2449,7 @@ F:	drivers/firmware/broadcom/*
 
 BROADCOM STB NAND FLASH DRIVER
 M:	Brian Norris <computersforpeace@gmail.com>
+M:	Kamal Dasu <kdasu.kdev@gmail.com>
 L:	linux-mtd@lists.infradead.org
 L:	bcm-kernel-feedback-list@broadcom.com
 S:	Maintained