sbc85x0: tidy up Makefile to use new configuration script.

Commit 804d83a5 allows us to move all the configuration
variation tweaks out of the top level Makefile and down
into the boards config header.  This takes advantage of
that for the sbc8540/sbc8560 boards.

There were a couple of cheezy comments pointing at incorrect
files, or files that don't exist, so I've cleaned those up too.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/configs/SBC8540.h b/include/configs/SBC8540.h
index 272b5dd..7cde39b 100644
--- a/include/configs/SBC8540.h
+++ b/include/configs/SBC8540.h
@@ -24,22 +24,25 @@
  * MA 02111-1307 USA
  */
 
-/* mpc8560ads board configuration file */
-/* please refer to doc/README.mpc85xx for more info */
-/* make sure you change the MAC address and other network params first,
- * search for CONFIG_ETHADDR,CONFIG_SERVERIP,etc in this file
+/*
+ * sbc8540 board configuration file.
  */
 
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
-#if XXX
-#define DEBUG		      /* General debug */
-#define ET_DEBUG
+/*
+ * Top level Makefile configuration choices
+ */
+#ifdef CONFIG_MK_66
+#define CONFIG_PCI_66
 #endif
+
 #define TSEC_DEBUG
 
-/* High Level Configuration Options */
+/*
+ * High Level Configuration Options
+ */
 #define CONFIG_BOOKE		1	/* BOOKE			*/
 #define CONFIG_E500		1	/* BOOKE e500 family		*/
 #define CONFIG_MPC85xx		1	/* MPC8540/MPC8560		*/