Add VBOOT to top-level Makefile

Makefile

 #
 # Copyright (c) 2010, Code Aurora Forum. All rights reserved.
 # (C) Copyright 2000-2009
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
 # 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
@@ skipping 250 matching lines @@
 ifdef USE_PRIVATE_LIBGCC
 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
 PLATFORM_LIBGCC = -L $(OBJTREE)/lib_$(ARCH) -lgcc
 else
 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 endif
 else
 PLATFORM_LIBGCC = -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
 endif
 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
+# Add vboot_reference lib
+ifdef VBOOT
+PLATFORM_LIBS += $(VBOOT)/lib/vboot_fw.a
+endif
 export PLATFORM_LIBS
 
 # Special flags for CPP when processing the linker script.
 # Pass the version down so we can handle backwards compatibility
 # on the fly.
 LDPPFLAGS += \
         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
         $(shell $(LD) --version | \
           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 
@@ skipping 3542 matching lines @@
 mrproper \
 distclean:      clobber unconfig
         rm -rf $(obj)*
 endif
 
 backup:
         F=`basename $(TOPDIR)` ; cd .. ; \
         gtar --force-local -zcvf `date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
 
 #########################################################################