Convert CONFIG_TIMESTAMP to Kconfig
This converts the following to Kconfig:
CONFIG_TIMESTAMP
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/k2g_hs_evm_defconfig b/configs/k2g_hs_evm_defconfig
index a5ebb42..c91f5c2 100644
--- a/configs/k2g_hs_evm_defconfig
+++ b/configs/k2g_hs_evm_defconfig
@@ -13,6 +13,7 @@
CONFIG_ENV_SIZE=0x40000
CONFIG_DEFAULT_DEVICE_TREE="keystone-k2g-evm"
CONFIG_DISTRO_DEFAULTS=y
+CONFIG_TIMESTAMP=y
CONFIG_FIT_IMAGE_POST_PROCESS=y
CONFIG_OF_BOARD_SETUP=y
CONFIG_BOOTCOMMAND="run findfdt; run envboot; run run_mon_hs; run init_${boot}; run get_fit_${boot}; bootm ${addr_fit}#${name_fdt}"