Move defaults from config_cmd_default.h to Kconfig

This sets the default commands Kconfig to match
include/config_cmd_default.h commands in the common/Kconfig and removes
them from include/configs.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
[trini: rastaban, am43xx_evm_usbhost_boot, am43xx_evm_ethboot updates]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 4c2c230..598519d 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -3,7 +3,9 @@
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_FIT_SIGNATURE=y
-CONFIG_CMD_NET=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_SOUND=y
 CONFIG_BOOTSTAGE=y
 CONFIG_BOOTSTAGE_REPORT=y
@@ -19,7 +21,6 @@
 CONFIG_CROS_EC=y
 CONFIG_CROS_EC_SANDBOX=y
 CONFIG_DM_ETH=y
-CONFIG_NETDEVICES=y
 CONFIG_CROS_EC_KEYB=y
 CONFIG_SANDBOX_SERIAL=y
 CONFIG_TPM_TIS_SANDBOX=y