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: NAswath Govindraju <a-govindraju@ti.com>
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210726152807.22991-7-a-govindraju@ti.com

configs/am64x_evm_a53_defconfig

@@ -49,6 +49,7 @@ CONFIG_SPL_YMODEM_SUPPORT=y
 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_PRODUCT_NUM=0x6165
 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

configs/am64x_evm_r5_defconfig

@@ -58,6 +58,7 @@ CONFIG_SPL_YMODEM_SUPPORT=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_ASKENV=y
 CONFIG_CMD_DFU=y
+CONFIG_CMD_GPT=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_USB=y