[PATCH] use _etext in 68VZ328 ucdimm target start code

This patch switches to using the _etext linker symbol instead of
__data_rom_start for the ucdimm 68VZ328 platform. I intend to
deprecate the __data_rom_start linker symbol in the future.

arch/m68knommu/platform/68VZ328/ucdimm/crt0_fixed.S

@@ -54,7 +54,7 @@ _stext:	movew	#0x2700,%sr
 	bne	1b
 
 	/* Copy data segment from ROM to RAM */
-	moveal	#__data_rom_start, %a0
+	moveal	#_etext, %a0
 	moveal	#_sdata, %a1
 	moveal	#_edata, %a2