Add Xiaomi Redmi 4 Prime (markw)

[vipaoL]

I found out that I shouldn't push panel drivers itself but should work on panel repo first

[z3ntu]

Any commit you add here needs to have a valid Signed-off-by tag. See https://www.kernel.org/doc/html/latest/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin

[vipaoL]

Any commit you add here needs to have a valid Signed-off-by tag

But only dts is upstreamable, isn't it?

[z3ntu]

Still, add it to every commit you author as standard practise for kernel commits, it's very annoying to chase people for this later.

[vipaoL]

Okay, I'll sign my commits. I think I can close this pull request because I've done with common dts and there's no need to push in an old branch