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_mips64el_defconfig b/configs/qemu_mips64el_defconfig
index d847757..c8bcbb7 100644
--- a/configs/qemu_mips64el_defconfig
+++ b/configs/qemu_mips64el_defconfig
@@ -2,5 +2,7 @@
 CONFIG_TARGET_QEMU_MIPS=y
 CONFIG_SYS_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS64_R1=y
-CONFIG_CMD_NET=y
+# CONFIG_CMD_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+# CONFIG_CMD_SETEXPR is not set
 CONFIG_USE_PRIVATE_LIBGCC=y