Widen NSSInitSingleton suppression.

This was modified in r247446 to cover some new leaks which apperaed.
The modification narrowed the suppression which has made some old leaks
in crypto tests on Linux and ChromeOS start reappearing.

TBR=eugenis@chromium.org
NOTRY=true
BUG=321976

Review URL: https://codereview.chromium.org/132233061

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247798 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247798