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/CPCI2DP.h b/include/configs/CPCI2DP.h
index c6882fd..ba875ec 100644
--- a/include/configs/CPCI2DP.h
+++ b/include/configs/CPCI2DP.h
@@ -36,6 +36,8 @@
 #define CONFIG_405GP		1	/* This is a PPC405 CPU		*/
 #define CONFIG_4xx		1	/* ...member of PPC4xx family	*/
 
+#define	CONFIG_SYS_TEXT_BASE	0xFFFC0000
+
 #define CONFIG_BOARD_EARLY_INIT_F 1	/* call board_early_init_f()	*/
 
 #define CONFIG_SYS_CLK_FREQ	33330000 /* external frequency to pll	*/