Combine the first 6 ingredients in a medium bowl; reserve 1 tablespoon flour mixture. Add chicken to flour mixture in bowl; toss gently to coat. Heat oil in a large nonstick skillet over medium-high heat. Add chicken; cook 5 minutes, stirring frequently. Stir in broth, raisins, and turmeric; bring to a boil. Reduce heat; simmer 8 minutes or until slightly thick.
Preheat broiler. Place polenta slices on a baking sheet coated with cooking spray, and sprinkle with reserved 1 tablespoon flour mixture. Broil 8 minutes or until thoroughly heated. Serve chicken mixture over polenta; top with yogurt, and sprinkle with almonds and cilantro.