Clear up confusion over the CMD_POST and POST_DIAG mess.

For some reason, CONFIG_POST permeated as CONFIG_CMD_POST_DIAG
when it really means just CONFIG_CMD_DIAG.  There is no CMD_POST.
Clear this mess up some.

Signed-off-by: Jon Loeliger <jdl@freescale.com>

include/configs/TB5200.h

@@ -82,11 +82,8 @@
 				 CFG_POST_I2C)
 
 #ifdef CONFIG_POST
-#define CFG_CMD_POST_DIAG CFG_CMD_DIAG
 /* preserve space for the post_word at end of on-chip SRAM */
 #define MPC5XXX_SRAM_POST_SIZE MPC5XXX_SRAM_SIZE-4
-#else
-#define CFG_CMD_POST_DIAG 0
 #endif
 
 
@@ -95,10 +92,6 @@
  */
 #include <config_cmd_default.h>
 
-#ifdef CONFIG_VIDEO
-#define CONFIG_CMD_BMP
-#endif
-
 #define CONFIG_CMD_ASKENV
 #define CONFIG_CMD_DATE
 #define CONFIG_CMD_DHCP
@@ -112,12 +105,19 @@
 #define CONFIG_CMD_MII
 #define CONFIG_CMD_NFS
 #define CONFIG_CMD_PING
-#define CONFIG_CMD_POST_DIAG
 #define CONFIG_CMD_REGINFO
 #define CONFIG_CMD_SNTP
 #define CONFIG_CMD_BSP
 #define CONFIG_CMD_USB
 
+#ifdef CONFIG_VIDEO
+#define CONFIG_CMD_BMP
+#endif
+
+#ifdef CONFIG_POST
+#define CONFIG__CMD_DIAG
+#endif
+
 
 #define	CONFIG_TIMESTAMP		/* display image timestamps */