Makefile: move all Power Architecture boards into boards.cfg

Clean up Makefile, and drop a lot of the config.mk files on the way.

We now also automatically pick all boards that are listed in
boards.cfg (and with all configurations), so we can drop the redundant
entries from MAKEALL to avoid building these twice.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/QS860T.h b/include/configs/QS860T.h
index 705d375..48a20df 100644
--- a/include/configs/QS860T.h
+++ b/include/configs/QS860T.h
@@ -54,6 +54,9 @@
 #define CONFIG_MPC860		1	/* This is a MPC860 CPU */
 #define CONFIG_QS860T		1	/* ...on a QS860T module */
 
+/* Start address of 512K Socketed Flash */
+#define	CONFIG_SYS_TEXT_BASE	0xFFF00000
+
 #define CONFIG_FEC_ENET		1	/* FEC 10/100BaseT ethernet */
 #define CONFIG_MII
 #define FEC_INTERRUPT		SIU_LEVEL1