poky.ent: Added Essential packages to Fedora and openSUSE

poky.ent: Added Essential packages to Fedora and openSUSE

Fixes [YOCTO #10855]

On Fedora version 24, missing packages were preventing
BitBake from running.  These essential packages included
"python", "cpio", and "file".  Also, missing for openSUSE
were "python3", "python3-curses", and "tar".

I added these sets of packages to the essentials variable
for each of the hosts involved.  They resolve to both the
YP Quick Start and YP Reference Manual, appropriately.

(From yocto-docs rev: 5150bb932536dc17d99f94a96245655144ae5137)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>