im trying to get a tontec 3.5in. screen to work on kali linux on my raspberry pi 2. I emailed the company and they said "The screen can be used on Kali, but you need to make a kernel make by yourself.(follow this steps: Kali is not design for RPI tft screen as default." im sorta new to linux and i have no clue how to build a kernel. can anyone help?