MIDEAST STOCKS-Saudi Arabia rises after royal reshuffle

(Updates with Saudi Arabia open) DUBAI, April 29 (Reuters) - Saudi Arabia's stock market rose in early trade on Wednesday after King Salman carried out major reshuffles in the line of succession and his cabinet. Heavyweight petrochemicals firm Saudi Basic Industries jumped 2.3 percent and was the main support. Salman appointed Interior Minister Mohammed bin Nayef as his new heir early on Wednesday and made his son, Defence Minister Mohammed bin Salman, second-in-line to succeed, setting the king