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/MPC8360EMDS.h b/include/configs/MPC8360EMDS.h
index 5449d0f..e5165e9 100644
--- a/include/configs/MPC8360EMDS.h
+++ b/include/configs/MPC8360EMDS.h
@@ -30,6 +30,9 @@
 #define CONFIG_MPC83xx		1 /* MPC83xx family */
 #define CONFIG_MPC8360		1 /* MPC8360 CPU specific */
 #define CONFIG_MPC8360EMDS	1 /* MPC8360EMDS board specific */
+
+#define	CONFIG_SYS_TEXT_BASE	0xFE000000
+
 #undef CONFIG_PQ_MDS_PIB /* POWERQUICC MDS Platform IO Board */
 #undef CONFIG_PQ_MDS_PIB_ATM /* QOC3 ATM card */