TORONTO — Royal Bank of Canada raised its quarterly dividend as it reported its second-quarter profit rose 25 per cent compared with a year earlier. The bank says it will now pay a quarterly dividend of $1.76 per share, an increase from $1.64 per share. The increased payment to shareholders came as RBC says it earned $5.51 billion or $3.85 per diluted share for the quarter ended April 30, up from a profit of $4.39 billion or $3.02 per diluted sh…