NanoPC-T3_ Plus development board and 7-inch 800 × 480 resolution touch screen, how to change the LCD / HDMI resolution by using friendcore 64 bit kernel 4.4, there is no "arch / arm / plat-s5p6818 / nanopi3 / LCDs. C" file in the kernel, who can help me

Refer to the following links:

https://wiki.friendlyarm.com/wiki/index.php/NanoPC-T3_ Plus/zh#.E5.85.B3.E4.BA.8ELCD.2FHDMI.E5.88.86.E8.BE.A8.E7.8E.87