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/IDS8247.h b/include/configs/IDS8247.h
index 52a57a9..a3a79e8 100644
--- a/include/configs/IDS8247.h
+++ b/include/configs/IDS8247.h
@@ -39,6 +39,8 @@
 #define CPU_ID_STR		"MPC8247"
 #define CONFIG_CPM2		1	/* Has a CPM2 */
 
+#define	CONFIG_SYS_TEXT_BASE	0xfff00000
+
 #define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
 
 #define	CONFIG_BOOTCOUNT_LIMIT