Fix missing module required for boost/1.64.0
Fix missing module required for boost/1.64.0

the impi module was wrongfully removed from the required module common
to all installations.

This commit fixes commit dc1b65e241d399401ec1626735e9d003c2db31b8

Closes issue #170

mF2C/COMPSs,mF2C/COMPSs,mF2C/COMPSs,mF2C/COMPSs,mF2C/COMPSs,mF2C/COMPSs