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

Review URL: http://codereview.chromium.org/2082007
diff --git a/Makefile b/Makefile
index 4db96fa..2a1043c 100644
--- a/Makefile
+++ b/Makefile
@@ -8,9 +8,10 @@
 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 \