Add support for the Pkcs11GetTpmTokenInfoForUser cryptohome call.

This call already existed but had not been added to CryptohomeClient.

BUG=chromium:205206
TEST=unit, manual

Review URL: https://codereview.chromium.org/26407002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228033 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 228033