Missing libssl-dev dependency missing

[dragynbane222]

So I ran into this trying to port halium to the OnePlus 5, but libssl-dev is required to build hybris-boot and doesn't seem to be listed as a required build library. It might not hurt to have it added. HTML is not a language I know at all, so I wouldn't be the one to fix that.

[jbruechert]

This is written in rst not HTML. The dependencies are listed in porting/first-steps.rst