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_flash.c b/common/cmd_flash.c
index e191f9c..db38f94 100644
--- a/common/cmd_flash.c
+++ b/common/cmd_flash.c
@@ -732,4 +732,4 @@
 #undef	TMP_PROT_ON
 #undef	TMP_PROT_OFF
 
-#endif	/* CFG_CMD_FLASH */
+#endif