configs: am43xx_evm: Enable SPL_DM

Enable SPL_DM on all AM43xx based platforms

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/am43xx_evm_defconfig b/configs/am43xx_evm_defconfig
index 5d238ce..1f68af6 100644
--- a/configs/am43xx_evm_defconfig
+++ b/configs/am43xx_evm_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARM=y
 CONFIG_AM43XX=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_TARGET_AM43XX_EVM=y
 CONFIG_SPL_STACK_R_ADDR=0x82000000
 CONFIG_DEFAULT_DEVICE_TREE="am437x-gp-evm"
@@ -72,4 +73,3 @@
 CONFIG_G_DNL_MANUFACTURER="Texas Instruments"
 CONFIG_G_DNL_VENDOR_NUM=0x0403
 CONFIG_G_DNL_PRODUCT_NUM=0xbd00
-CONFIG_SPL_OF_LIBFDT=y