Add an option to force pre-O apps to use full screen aspect ratio

When an app target pre-O releases, the default max aspect ratio
is 1.86:1 which leads to ugly black areas on devices that have
screens with higher aspect ratio (for example Galaxy S8/S9).

This change adds an option to allow users to change default
aspect ratio for pre-O apps to 2.1 which would fit recent devices.

Wight554:
Simplify the code, we don't need the Settings for that, just bool

sagarmakhar:
apply settings only on apps targetting sdk version less than oreo

Change-Id: Icf77a2cbc9c734328a6c0c59b1344eb784cfb212
Signed-off-by: Jackeagle <jackeagle102@gmail.com>
3 files changed