libplatsupportports: Add platsupportports library

This library is similar to the platsupport library in util_libs but is
intended to house code ports from GPL sources.

libtx2bpmp: Pull in U-Boot's srcs for BPMP,IVC,CLK

This commit brings in the Tegra BPMP and IVC sources, as well as the
devicetree clock bindings from U-Boot and also adds CMake rules to
define this subdirectory as a separate library project.

libfdtgen: initial release

this library can generate a sub-devicetree
using a root devicetree and a specification

Added new libvirtqueue

Created a new multi-buffer, scatter-gather libvirtqueue, closer to
compliance with the virtio standard.

Removed old deprecated libvirtqueue

Removed the old single-buffer libvirtqueue as a preliminary commit for
introducing the new one.

link kernel_autoconf explicitly

explicitly link kernel_autoconf on each subdirectory

projects_libs: global configuration lib

this commit removes autoconf.h generation from projects_libs and
append '#include <<lib_name>/gen_config.h>' after each
'#include <autoconf.h>' since autoconf.h is only the for the
kernel config now. This is a temporarily solution, since we
currently don't have a way to tell which header files each file
is trying to include when it includes 'autoconf.h'

vswitch: Added vswitch library implementation

Added the libvswitch library implementation. This is a library
which provides utility functions for managing and routing virtual
LANs in a VMM environment.

virtqueue: Added virtqueue library implementation

Added the libvirtqueue library implementation. This is an
initial/basic library that implements a generic virtqueue API,
inspired by virtio communication mechanisms.

Add libnfs

SELFOUR-1103 add cmake support