[1954] Fixing makefile to include path to boost libs

tests/tools/perfdhcp/Makefile.am

@@ -2,6 +2,7 @@ SUBDIRS = . tests
 
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/lib/log -I$(top_builddir)/src/lib/log
+AM_CPPFLAGS += $(BOOST_INCLUDES)
 
 AM_CXXFLAGS = $(B10_CXXFLAGS)