ks2_evm: config: enable fatload command

The keystone2 evm can boot from USB partition with FAT32 FS, so
enable generic load command and fatload command usage.

Acked-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>

include/configs/ks2_evm.h

@@ -224,6 +224,8 @@
 #define CONFIG_CMD_SF
 #define CONFIG_CMD_EEPROM
 #define CONFIG_CMD_USB
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_FS_GENERIC
 
 /* U-Boot general configuration */
 #define CONFIG_SYS_GENERIC_BOARD