configs: Migrate CORTINA_FW_ADDR and CORTINA_FW_LENGTH to Kconfig

Use moveconfig.py script to convert below defines to Kconfig and move
these entries to defconfigs.
    CONFIG_CORTINA_FW_ADDR
    CONFIG_CORTINA_FW_LENGTH

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/T2080RDB_SPIFLASH_defconfig b/configs/T2080RDB_SPIFLASH_defconfig
index 393b6db..59963fd 100644
--- a/configs/T2080RDB_SPIFLASH_defconfig
+++ b/configs/T2080RDB_SPIFLASH_defconfig
@@ -68,6 +68,7 @@
 CONFIG_PHY_AQUANTIA=y
 CONFIG_PHY_CORTINA=y
 CONFIG_SYS_CORTINA_FW_IN_SPIFLASH=y
+CONFIG_CORTINA_FW_ADDR=0x120000
 CONFIG_PHY_REALTEK=y
 CONFIG_DM_ETH=y
 CONFIG_DM_MDIO=y