rbutil uses several components from the utils folder, and can be
considered part of utils too. Having it in a separate folder is an
arbitrary split that doesn't help anymore these days, so merge them.
This also allows other utils to easily use libtools.make without the
need to navigate to a different folder.
Change-Id: I3fc2f4de19e3e776553efb5dea5f779dfec0dc21
* All include full bootloader installation!
* X20 lack USB VID/PIDs so cannot be autodetected.
* Benjie T6 (variant/OEM of the Rocker) USB VID/PID unknown.
Change-Id: Ia823de072c83506d36410ec436be15a0caf97151
Create a BootloaderInstallHelper class for handling post installation hints and
creating the installation instance depending on the player model. This removes
the base class handling its derived classes which always has been weird, and
removes the need to change the base class when adding a new installation
method, since the base shouldn't be affected.
Change-Id: I2a156d70fd1cff6c48bdd46d10c33d75c953ea90