This is an Android port of 7ed61c50a1. It looks like we don't have
descriptions for any of the RetroAchievements settings in the Android
GUI, so I haven't added descriptions for these two new settings either.

Modify the RetroAchievements login code in Android to pass in a callback, pop a message if login fails, close the login box if it succeeds.

Android: Add Reset Dolphin Settings functionality

Android: Expand bottom sheets on devices with touch too

In a few places in Dolphin, we're using BottomSheetDialogFragments.
These unhelpfully tend to start out in a "collapsed" state when in
landscape mode (presumably depending on factors like screen size). The
user then has to manually expand them before they can meaningfully
interact with them.

We've been automatically setting BottomSheetDialogFragments to the
expanded state if the device Dolphin is running on doesn't support
touch, since with d-pad navigation it's impossible to expand these
sheets. But I think we should set them to expanded on devices that
support touch too. I haven't encountered a single case where you can do
anything useful with any of Dolphin's BottomSheetDialogFragments while
they're collapsed, so the user always has to expand sheets manually if
they start out collapsed. And just because a device supports touch
doesn't necessarily mean you're interacting with it through the touch
screen right now - you could be using a gamepad, for instance.

IOS/USB: Emulate Wii Speak using cubeb