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/include/configs/sbc8641d.h b/include/configs/sbc8641d.h
index 021da50..00aab6b 100644
--- a/include/configs/sbc8641d.h
+++ b/include/configs/sbc8641d.h
@@ -479,10 +479,9 @@
 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download */
 #define CONFIG_SYS_LOADS_BAUD_CHANGE	1	/* allow baudrate change */
 
-#include <config_cmd_default.h>
-    #define CONFIG_CMD_PING
-    #define CONFIG_CMD_I2C
-    #define CONFIG_CMD_REGINFO
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_I2C
+#define CONFIG_CMD_REGINFO
 
 #if defined(CONFIG_PCI)
     #define CONFIG_CMD_PCI