In windows builds, we don't build stripped subsurface binaries but depend on previously built ones. For any reason, in regular windows build libftdi is excluded, and library is not installed/built; on the other side, in containerized build libftdi is included and we need to include it in smtk.import build. Setting pkg_config_library to QUIET works for both builds. Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>