limit maximum resizing ratio

[jinmingteo]

limit max_wh_ratio as the ratio can be higher than max_wh_ratio.

resize_shape = (3,32, 320)
wrong = np.zeros((32, 325, 3))
y= resize_norm_img_chinese(wrong, resize_shape)[0]

y.shape = (3, 32, 325)

[CLAassistant]

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[paddle-bot[bot]]

Thanks for your contribution!

[andyjiang1116]

方便提交到dygraph分支吗？然后cp到2.6分支

[jinmingteo]

提交在dygraph #7381