Fix ASIO compilation with clang on ubuntu 14.04
Fix ASIO compilation with clang on ubuntu 14.04

Ubuntu 14.04 packages asio 1.10.1 and clang 3.4.1.
In this environment, asio stand alone (set ASIO_STANDALONE)
does not correcly detect that the stl has CHRONO support (c++11).

Force the use of std::chrono.

Signed-off-by: Kevin Rocard <f6672397850e914591889d29dcaf9077eb1a8a4f@intel.com>

mgaio/parameter-framework,dawagner/parameter-framework,clero/parameter-framework,01org/parameter-framework,miguelgaio/parameter-framework,miguelgaio/parameter-framework,mgaio/parameter-framework,clero/parameter-framework,mgaio/parameter-framework,miguelgaio/parameter-framework,01org/parameter-framework,krocard/parameter-framework,clero/parameter-framework,krocard/parameter-framework,01org/parameter-framework,krocard/parameter-framework,dawagner/parameter-framework,dawagner/parameter-framework