Smooth jazz star Kenny G insisted Thursday he’s not a foreign provocateur supporting Hong Kong’s pro-democracy protests, after Beijing signaled its displeasure over his inharmonious visit and repeated concerns about meddling by external forces. The American musician created a stir when he tweeted Wednesday about his visit to the semiautonomous southern Chinese city, where thousands of student-led protesters have occupied streets for more than three weeks to press their demands for greater democratic reforms. …