board: ti: dra76: Add dt support

Add support for selecting proper dtb for
dra76x u-boot from FIT.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/dra7xx_evm_defconfig b/configs/dra7xx_evm_defconfig
index e4bb299..53903bf 100644
--- a/configs/dra7xx_evm_defconfig
+++ b/configs/dra7xx_evm_defconfig
@@ -37,7 +37,7 @@
 CONFIG_ISO_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_SPL_OF_CONTROL=y
-CONFIG_OF_LIST="dra7-evm dra72-evm dra72-evm-revc dra71-evm"
+CONFIG_OF_LIST="dra7-evm dra72-evm dra72-evm-revc dra71-evm dra76-evm"
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_DM=y
 CONFIG_SPL_DM=y