MX51: drop config.mk from mx51evk

The config.mk file in board directory is now obsolete and
should be removed. Add option for the IMX image into
boards.cfg
Signed-off-by: NStefano Babic <sbabic@denx.de>

board/freescale/mx51evk/config.mk

-#
-# Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
-#
-# 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
-#
-
-CONFIG_SYS_TEXT_BASE = 0x97800000
-IMX_CONFIG = $(SRCTREE)/board/$(BOARDDIR)/imximage.cfg
-ALL += $(obj)u-boot.imx

boards.cfg

@@ -108,7 +108,7 @@ edminiv2                     arm         arm926ejs   -                   LaCie
 dkb			     arm         arm926ejs   -                   Marvell        pantheon
 ca9x4_ct_vxp                 arm         armv7       vexpress            armltd
 efikamx                      arm         armv7       efikamx             -              mx5
-mx51evk                      arm         armv7       mx51evk             freescale      mx5
+mx51evk                      arm         armv7       mx51evk             freescale      mx5		mx51evk:IMX_CONFIG=board/freescale/mx51evk/imximage.cfg
 mx53evk                      arm         armv7       mx53evk             freescale      mx5
 vision2                      arm         armv7       vision2             ttcontrol      mx5
 cm_t35                       arm         armv7       cm_t35              -              omap3

include/configs/mx51evk.h

@@ -33,6 +33,8 @@
 #define CONFIG_DISPLAY_CPUINFO
 #define CONFIG_DISPLAY_BOARDINFO
 
+#define CONFIG_SYS_TEXT_BASE	0x97800000
+
 #define CONFIG_L2_OFF
 
 #include <asm/arch/imx-regs.h>