Remove reference to squisher

Change-Id: I475be5d7ff8a5f2ecdbca58d7b5221da5fd83c56
New bootanimation

Also remove HDPI one, no nexus device uses HDPI anymore

Change-Id: Id24a913316e0f6c7c6db43a93498bc59afb70ed4
Move basic build script to vendor repo.

Need to add ccache part too.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>