FSL: Clean up board/freescale/common/Makefile

Each file that can be built here now follows some
CONFIG_ option so that they are appropriately built
or not, as needed.  And CONFIG_ defines were added
to various board config files to make sure that happens.

The other board/freescale/*/Makefiles no longer need
to reach up and over into ../common to build their
individually needed files any more.

Boards that are CDS specific were renamed with cds_ prefix.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
diff --git a/include/configs/MPC8541CDS.h b/include/configs/MPC8541CDS.h
index f1a86e6..3f3f741 100644
--- a/include/configs/MPC8541CDS.h
+++ b/include/configs/MPC8541CDS.h
@@ -49,6 +49,9 @@
 
 #define CONFIG_FSL_LAW		1	/* Use common FSL init code */
 
+#define CONFIG_FSL_VIA
+#define CONFIG_FSL_CDS_EEPROM
+
 /*
  * When initializing flash, if we cannot find the manufacturer ID,
  * assume this is the AMD flash associated with the CDS board.
@@ -274,6 +277,8 @@
  * 1111 1111 1111 0000 0000 1111 1111 0111 = fff00ff7
  */
 
+#define CONFIG_FSL_CADMUS
+
 #define CADMUS_BASE_ADDR 0xf8000000
 #define CFG_BR3_PRELIM   0xf8000801
 #define CFG_OR3_PRELIM   0xfff00ff7