[PFW] Integrate PFW core version 3.2.5 release

PFW 3.2.5 release notes:
https://github.com/intel/parameter-framework/releases/tag/v3.2.5



This release contains the following changes:
- CMake Package configuration file generation
- Preliminary and unofficial OSX support in Travis-CI
- Use clang-tidy for automatic code cleanup
- Some more cleanup and fixes
- Speed Travis-CI up by using CCache

Bug: 124767636
Test: build

Change-Id: Ib7ce6824430f3907c0508194e91f71a934bdcda8
Signed-off-by: Sebastien Guiriec <sebastien.guiriec@renault.com>