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/aria.h b/include/configs/aria.h
index cb2c726..3f1e7f7 100644
--- a/include/configs/aria.h
+++ b/include/configs/aria.h
@@ -51,6 +51,8 @@
 #define CONFIG_FSL_DIU_FB	1	/* FSL DIU */
 #define CONFIG_FSL_DIU_LOGO_BMP	1	/* Don't include FSL DIU binary bmp */
 
+#define	CONFIG_SYS_TEXT_BASE	0xFFF00000
+
 /* video */
 #undef CONFIG_VIDEO