Improve platform selection
Created by: APokorny
This is a merge of the https://github.com/ubports/ubuntu-touch/issues/494 fix for mir 1.0 which assumes that android 7.1 was the first to contain CAF ABI breaks.
Created by: APokorny
This is a merge of the https://github.com/ubports/ubuntu-touch/issues/494 fix for mir 1.0 which assumes that android 7.1 was the first to contain CAF ABI breaks.