fix find_package() config (didn't find Embree correctly)
fix find_package() config (didn't find Embree correctly)

wilsonCernWq/ospray,ospray/OSPRay,ospray/OSPRay,ospray/OSPRay,MengjiaoH/ospray,ospray/OSPRay,MengjiaoH/ospray,MengjiaoH/ospray,MengjiaoH/ospray,MengjiaoH/ospray,wilsonCernWq/ospray,wilsonCernWq/ospray