(Reuters) - Hewlett-Packard Co plans to cut as many as 16,000 more jobs in a major ramp-up of CEO Meg Whitman's years-long effort to turn around the personal computer maker and relieve pressure on its profit margins. Whitman said the turnaround remained on track and her raised target reflected how HP continued to find areas to streamline across its broad portfolio, which encompasses computing, networking, storage and software. But some analysts ...