board: T4240rdb: Extend cs4340_get_fw_addr() functionality

T4240RDB supports booting from 2 nor banks(default and altbank). The
corresponding defconfig can only have one entry defined and therefore,
extend cs4340_get_fw_addr() function to overwrite firmware address which
will be later used in cortina firmware.

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/board/freescale/t4rdb/t4rdb.h b/board/freescale/t4rdb/t4rdb.h
index 3f1fa7b..06779f5 100644
--- a/board/freescale/t4rdb/t4rdb.h
+++ b/board/freescale/t4rdb/t4rdb.h
@@ -11,6 +11,9 @@
 #define CONFIG_SYS_NUM_FM1_DTSEC	4
 #define CONFIG_SYS_NUM_FM2_DTSEC	4
 
+#define CORTINA_FW_ADDR_IFCNOR				0xefe00000
+#define CORTINA_FW_ADDR_IFCNOR_ALTBANK		0xebf00000
+
 void fdt_fixup_board_enet(void *blob);
 void pci_of_setup(void *blob, struct bd_info *bd);