Prepare for SoC rework of ARM code:
- rename CONFIG_BOOTBINFUNC into  CONFIG_INIT_CRITICAL
- rename memsetup into lowlevel_init (function name and source files)
diff --git a/board/purple/Makefile b/board/purple/Makefile
index a9463b6..b2f2fc0 100644
--- a/board/purple/Makefile
+++ b/board/purple/Makefile
@@ -27,7 +27,7 @@
 LIB	= lib$(BOARD).a
 
 OBJS	= $(BOARD).o flash.o sconsole.o
-SOBJS	= memsetup.o
+SOBJS	= lowlevel_init.o
 
 $(LIB):	.depend $(OBJS) $(SOBJS)
 	$(AR) crv $@ $(OBJS)