By Echo Wang NEW YORK (Reuters) - Cybersecurity firm Netskope raised $908.2 million in an initial public offering in the United States, the cloud-based cybersecurity company said on Wednesday. The Santa Clara, California-based company sold about 47.8 million shares at$19 apiece, at the higher end of its target range, which it had previously raised to $17 to$19 per share, confirming an earlier report by Reuters. This gives the company a valuation of $7.26 billion, compared with the$7.5 billion it fetc ...