Ensure Boost_USE_STATIC_LIBS is set on Windows

Boost_USE_STATIC_LIBS needs to be set on Windows otherwise
FindBoost fails, this appears to be a bug in FindBoost.

Change-Id: I3fd21f51a82a6f6d8cedbdb046e223dfe94f1de8
Merge topic 'find-boost-fix' into master

24369652 Ensure Boost_USE_STATIC_LIBS is set on Windows