Fix psuggest query type name.

The server sends the result called "PERSONALIZED_QUERY" rather than
"PERSONALIZED". This fixes our logging for psuggest.

BUG=348219
TBR=mpearson

Review URL: https://codereview.chromium.org/184843005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254449 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254449