Utility.h multiple inclusions directive harmonized
Utility.h multiple inclusions directive harmonized

Replace #ifdef and #define wth #pragma once

Change-Id: I60fe1e74a7481be38d9b8e44952e533d7ae80857
Signed-off-by: Sebastien Gonzalve <eb080873e0961eb0e27ae23642f9b887ff089d6f@intel.com>

krocard/parameter-framework,dbrageul/parameter-framework,01org/parameter-framework,soaresm/parameter-framework,clero/parameter-framework,sdnnfv/parameter-framework,anwarMov/parameter-framework,Makohoek/parameter-framework,Makohoek/parameter-framework,mgaio/parameter-framework,clero/parameter-framework,zchokri/parameter-framework,miguelgaio/parameter-framework,dawagner/parameter-framework,krocard/parameter-framework,anwarMov/parameter-framework,wzairix/parameter-framework,sdnnfv/parameter-framework,android-ia/hardware_intel_parameter-framework,soaresm/parameter-framework,android-ia/hardware_intel_parameter-framework,sdnnfv/parameter-framework,dawagner/parameter-framework,soaresm/parameter-framework,Makohoek/parameter-framework,miguelgaio/parameter-framework,krocard/parameter-framework,miguelgaio/parameter-framework,dawagner/parameter-framework,zchokri/parameter-framework,01org/parameter-framework,mgaio/parameter-framework,wzairix/parameter-framework,anwarMov/parameter-framework,mgaio/parameter-framework,wzairix/parameter-framework,01org/parameter-framework,dbrageul/parameter-framework,clero/parameter-framework,dbrageul/parameter-framework,android-ia/hardware_intel_parameter-framework,zchokri/parameter-framework