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/cpci5200.h b/include/configs/cpci5200.h
index 712db6d..2bedae2 100644
--- a/include/configs/cpci5200.h
+++ b/include/configs/cpci5200.h
@@ -45,6 +45,10 @@
 #define CONFIG_CPCI5200		1	/* ... on CPCI5200  board */
 #define CONFIG_MPC5200_DDR	1	/* ... use DDR RAM	  */
 
+#ifndef CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_TEXT_BASE	0xFFF00000	/* Standard: boot high */
+#endif
+
 #define CONFIG_SYS_MPC5XXX_CLKIN	33000000	/* ... running at 33.000000MHz */
 
 #define BOOTFLAG_COLD		0x01	/* Normal Power-On: Boot from FLASH  */