Heat vegetable oil in a large nonstick skillet coated with cooking spray over medium-high heat. Sprinkle pork with salt and pepper. Place flour in a shallow bowl. Dredge pork in flour, turning to coat; shake off excess flour. Add pork to pan; cook 3 1/2 minutes on each side or until browned. Remove pork from pan. Add garlic to pan; sauté 10 seconds. Add wine, olives, and tomatoes; cook 2 minutes. Return pork to pan; cook 1 minute. Sprinkle with parsley.