[Development] Raising the minimum Android NDK version

[Vincas Dargis]

On 7/5/18 10:54 PM, Thiago Macieira wrote:
> Instead of applying a workaround, can we just raise the minimum NDK to one
> that fixes the issue? Are there still valid reasons for requiring old NDKs?

I see that there is still work in progress to support Clang, as GCC NDK is being deprecated, if I 
understand it correctly:

https://bugreports.qt.io/browse/QTBUG-67464