ppc/85xx: add ld script file for boot from NAND

The first stage 4K image uses a seperate ld script file to
generate 4K image. This patch moves it to the cpu/mpc85xx/*
to make it avaliable for 85xx platform.

Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

cpu/mpc85xx/u-boot-nand_spl.lds

@@ -0,0 +1,67 @@
+/*
+ * (C) Copyright 2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de
+ *
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(powerpc)
+SECTIONS
+{
+	. = 0xfff00000;
+	.text : {
+		*(.text)
+  	}
+	_etext = .;
+
+	.reloc : {
+		_GOT2_TABLE_ = .;
+		*(.got2)
+		_FIXUP_TABLE_ = .;
+		*(.fixup)
+	}
+	__got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+	__fixup_entries = (. - _FIXUP_TABLE_) >> 2;
+
+	. = ALIGN(8);
+	.data : {
+		*(.rodata*)
+		*(.data*)
+		*(.sdata*)
+	}
+	_edata  =  .;
+
+	. = ALIGN(8);
+	__init_begin = .;
+	__init_end = .;
+
+	.resetvec ADDR(.text) + 0xffc : {
+		*(.resetvec)
+	} = 0xffff
+
+	__bss_start = .;
+	.bss : {
+		*(.sbss)
+		*(.bss)
+	}
+	_end = .;
+}
+ASSERT(__init_end <= 0xfff00ffc, "NAND bootstrap too big");