Add two extra flags for test_analyzer_int8_image_classification to disable fp32/int8 (#19840)
Add two extra flags for test_analyzer_int8_image_classification to disable fp32/int8 (#19840)

test=develop
chengduoZH/Paddle,PaddlePaddle/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,luotao1/Paddle,tensor-tang/Paddle,luotao1/Paddle,chengduoZH/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,chengduoZH/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle