IMX8MP L5.15.71 imx-image-desktop cause shadows when dragging some windows

[coindu]

Dear：

          When burning an imx-image-desktop image based on L5.15.71.  I  discovered that some windows may have shadows during drag and drop .

[Harvey021]

Hi @coindu 

There was such issue with BSP L5.15.71, suggest to use the newer BSP. 

meta-nxp-desktop/README.md at lf-6.1.22-2.0.0-mickledore · nxp-imx/meta-nxp-desktop · GitHub

Best regards

Harvey