Add support for new arch 'ppc64le' in "libcommoncpp2" upstream package

[ravi]

Hi,

       We are in the process of adding support for new architecture
'ppc64le' (PowerPC 64 Little Endian) and as part of that, We have worked
with libtool maintainer to get alpha release (links below) that has all
the needed bits to support building on ppc64le.
A stable libtool release is expected by end of this year.
ftp://alpha.gnu.org/gnu/libtool/libtool-2.4.2.418.tar.gz(1.6MB)
ftp://alpha.gnu.org/gnu/libtool/libtool-2.4.2.418.tar.xz(920KB)

'libcommoncpp2-1.8.1' didn't build on 'ppc64le' system because of outdated
libtool. hence we request you to use latest libtool alpha release and
spin off a new version of 'libcommoncpp2' package. So that we can test ppc64le fixes.

Latest 'libcommoncpp2' source package we picked is from :
" ftp://ftp.gnu.org/gnu/commoncpp/"

Thanks,
Ravi.