展锐8541E 亮屏概率性花屏

1、快速亮灭屏会导致花屏或者发白，解决方式未调整reset延时

     bsp/kernel/kernel4.14/arch/arm/boot/dts/lcd/lcd_axs15260d_boe_mipi_fwvga.dtsi

     sprd,reset-on-sequence = <1 5>, <0 5>, <1 60>;

     改为

   sprd,reset-on-sequence = <1 5>, <0 5>, <1 100>;