rename cgpt files with cgptlib prefix (to avoid conflicts to cgpt utility)

src/platform/vboot_reference/Makefile

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 export CC ?= gcc
 export CFLAGS = -Wall -DNDEBUG -O3 -Werror
 export TOP = $(shell pwd)
 export INCLUDES = \
         -I$(TOP)/common/include \
         -I$(TOP)/cryptolib/include \
-        -I$(TOP)/misclibs/include
+        -I$(TOP)/misclibs/include \
+        -I$(TOP)/cgptlib
 
-SUBDIRS=common cryptolib misclibs vfirmware vkernel utility tests
+SUBDIRS=common cgptlib cryptolib misclibs vfirmware vkernel utility tests
 
 all:
         for i in $(SUBDIRS); do \
         ( cd $$i ; $(MAKE)) ; \
         done
 
 clean:
         for i in $(SUBDIRS); do \
         ( cd $$i ; make clean) ; \
         done