blackfin: init bss early

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>

arch/blackfin/cpu/start.S

@@ -190,6 +190,7 @@ ENTRY(_start)
 	call _memcpy_ASM;
 #endif
 
+.Lnorelocate:
 	/* Initialize BSS section ... we know that memset() does not
 	 * use the BSS, so it is safe to call here.  The bootrom LDR
 	 * takes care of clearing things for us.
@@ -202,7 +203,6 @@ ENTRY(_start)
 	r2.h = __bss_len;
 	call _memset;
 
-.Lnorelocate:
 
 	/* Setup the actual stack in external memory */
 	sp.h = HI(CONFIG_STACKBASE);