Compilation in Conan fails if compiler=clang and libstd=libstdc++
because conan defines _GLIBCXX_USE_CXX11_ABI=0 but openvino autodetects
the value and overwrites it with _GLIBCXX_USE_CXX11_ABI=1.
These changes make it honor the compile definitions generated by Conan.
Co-authored-by: Ilya Lavrenov <ilya.lavrenov@intel.com>