Fix MW_INSTALL_PATH bootstrapping

/etc/profile.d/puppet-managed/set_mw_install_path.sh was moved to
/etc/profile.d/set_MW_INSTALL_PATH by
Ib00295e434fafc78f8ab6c79bc2bbffb6193b17f.

Change-Id: I63d90050d534d188a2a380e982e49abc8c66ff15