LONDON (Reuters) – France’s Schneider Electric won control of Aveva, one of Britain’s biggest tech companies, on Friday after minority shareholders approved an offer valuing the industrial software firm at 9.9 billion pounds ($11.9 billion). France’s Schneider, which already owned nearly 60% of Aveva, upped its offer to 3,225 pence earlier this month after several major investors threatened to reject its previous 3,100 pence offer, which they termed “opportunistic”. The successful bid will leave only a handful of large tech companies listed in London. Some 83.49% of shares voted at a court mee…