configs: k2x_evm: Adds FIT loading environment variables

Updates the default u-boot environment variables to support FIT image
loading.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/k2g_evm.h b/include/configs/k2g_evm.h
index b0b4206..9580900 100644
--- a/include/configs/k2g_evm.h
+++ b/include/configs/k2g_evm.h
@@ -23,6 +23,7 @@
 	DEFAULT_MMC_TI_ARGS						\
 	DEFAULT_PMMC_BOOT_ENV						\
 	DEFAULT_FW_INITRAMFS_BOOT_ENV					\
+	DEFAULT_FIT_TI_ARGS						\
 	"boot=mmc\0"							\
 	"console=ttyS0,115200n8\0"					\
 	"bootpart=0:2\0"						\