configs: am64x_evm_*_defconfig: Enable config to support gpt and FDT library overlay

Enable config to support gpt command on AM642 evm/sk and enable config for
FDT library overlay support

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210726152807.22991-7-a-govindraju@ti.com
diff --git a/configs/am64x_evm_a53_defconfig b/configs/am64x_evm_a53_defconfig
index 34a1390..4034cd4 100644
--- a/configs/am64x_evm_a53_defconfig
+++ b/configs/am64x_evm_a53_defconfig
@@ -49,6 +49,7 @@
 CONFIG_CMD_ASKENV=y
 CONFIG_CMD_DFU=y
 CONFIG_CMD_DM=y
+CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_USB=y
@@ -141,4 +142,5 @@
 CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_USB_FUNCTION_MASS_STORAGE=y
 CONFIG_FAT_WRITE=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 CONFIG_FS_FAT_MAX_CLUSTSIZE=16384