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/shannon/Makefile b/board/shannon/Makefile
index 86098a3..f66b096 100644
--- a/board/shannon/Makefile
+++ b/board/shannon/Makefile
@@ -26,7 +26,7 @@
 LIB	= lib$(BOARD).a
 
 OBJS	:= shannon.o flash.o
-SOBJS	:= memsetup.o
+SOBJS	:= lowlevel_init.o
 
 $(LIB):	$(OBJS) $(SOBJS)
 	$(AR) crv $@ $(OBJS) $(SOBJS)
diff --git a/board/shannon/memsetup.S b/board/shannon/lowlevel_init.S
similarity index 97%
rename from board/shannon/memsetup.S
rename to board/shannon/lowlevel_init.S
index a9a8777..0655c42 100644
--- a/board/shannon/memsetup.S
+++ b/board/shannon/lowlevel_init.S
@@ -51,8 +51,8 @@
 
 /* setting up the memory */
 
-.globl memsetup
-memsetup:
+.globl lowlevel_init
+lowlevel_init:
 	ldr	r0, MEM_BASE
 
 	/* Setup the flash memory */