Consolidate arch-specific mem_malloc_init() implementations

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
diff --git a/lib_sparc/board.c b/lib_sparc/board.c
index e69431f..6aadb56 100644
--- a/lib_sparc/board.c
+++ b/lib_sparc/board.c
@@ -75,25 +75,6 @@
 ulong monitor_flash_len;
 
 /************************************************************************
- * Utilities								*
- ************************************************************************
- */
-
-/*
- * The Malloc area is immediately below the monitor copy in RAM
- */
-static void mem_malloc_init(ulong start, ulong size)
-{
-	mem_malloc_start = start;
-	mem_malloc_end = start + size;
-	mem_malloc_brk = start
-
-	memset((void *)mem_malloc_start, 0, size);
-}
-
-/***********************************************************************/
-
-/************************************************************************
  * Init Utilities							*
  ************************************************************************
  * Some of this code should be moved into the core functions,
@@ -313,7 +294,7 @@
 	 */
 	interrupt_init();
 
-	/* initialize malloc() area */
+	/* The Malloc area is immediately below the monitor copy in RAM */
 	mem_malloc_init(CONFIG_SYS_MALLOC_BASE,
 			CONFIG_SYS_MALLOC_END - CONFIG_SYS_MALLOC_BASE);
 	malloc_bin_reloc();