common/: Remove lingering references to CFG_CMD_* symbols.

Fixed some broken instances of "#ifdef CMD_CFG_IDE" too.
Those always evaluated TRUE, and thus were always compiled
even when IDE really wasn't defined/wanted.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/common/cmd_vfd.c b/common/cmd_vfd.c
index 6fc0624..29c349d 100644
--- a/common/cmd_vfd.c
+++ b/common/cmd_vfd.c
@@ -73,7 +73,7 @@
 	"vfd ADDR\n"
 	"    - load bitmap at address ADDR\n"
 );
-#endif	/* CFG_CMD_VFD */
+#endif
 
 #ifdef CONFIG_VFD
 int trab_vfd (ulong bitmap)