Correct recent change, core potential radius for SCPTB


git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@12855 bac0169d-1eea-4375-b5f6-f89d2ced9994
DFTB: bug fix for stress tensor in parallel runs


git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@12856 bac0169d-1eea-4375-b5f6-f89d2ced9994