configs: iocom: Fix typo on CMD_FPGA command

Fix typo in CMD_FPGA command enabling.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

include/configs/iocon.h

@@ -62,7 +62,7 @@
  * Commands additional to the ones defined in amcc-common.h
  */
 #define CONFIG_CMD_CACHE
-#define CONFIG_CMD_FPGAD
+#define CONFIG_CMD_FPGA
 #undef CONFIG_CMD_EEPROM
 
 /*