2.9.0 NEON support

[nozomi]

I've tested the ARMV7 build on a few different devices and on all them, when selecting the "about" button, it shows NEON as (not supported).

But the 2.8.1 and 2.8.1.1 builds show it as (enabled) on thoses same devices. It's it not complied or enabled in the 2.9.0 release or were the previous releases not accurate in stating that it was enabled?

[Praetorian]

This was a side-effect of a code clean-up that was needed wrt using architecture extensions, in combination with the fact that there are few arm-v7a device (although I don't think we can easily tell which) that do not support Neon. There was no clear way to support both.

For the next release (which could be a 2.9.1 bugfix release) we're considering having two APKs available on the ScummVM site for v7a. One with Neon support and one without. On the Play Store we'll probably switch to a Neon enabled package for v7a in the app bundle.