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sdk兼容高电平触发和低电平触发,tf卡座有高电平触发和低电平触发,修改驱动mmc驱动关于判断tf卡状态的返回值

默认hdmi输出720p设置 [disp] disp_init_enable = 1 disp_mode = 0 screen0_output_type = 3 screen0_output_mode = 4 screen0_output_format = 1 screen0_output_bits