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/qemu-x86_defconfig b/configs/qemu-x86_defconfig
index 38e0fdb..5639cc5 100644
--- a/configs/qemu-x86_defconfig
+++ b/configs/qemu-x86_defconfig
@@ -1,7 +1,10 @@
 CONFIG_X86=y
 CONFIG_DEFAULT_DEVICE_TREE="qemu-x86_i440fx"
 CONFIG_GENERATE_PIRQ_TABLE=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_NFS is not set
 CONFIG_BOOTSTAGE=y
 CONFIG_BOOTSTAGE_REPORT=y
 CONFIG_CMD_BOOTSTAGE=y