This commit adds checks during the findPreferredProvider function for a
new variable REQUIRED_VERSION. This can be set, in exactly the same
manner as PREFERRED_VERSION, on a per package basis to enforce the use
of a particular version of a package.
REQUIRED_VERSION is similar in behaviour to PREFERRED_VERSION except if
the version specified by REQUIRED_VERSION is not found an error occurs
and the execution of Bitbake stops.
Fixes [YOCTO #10096]
(Bitbake rev: 5cbf6d95fc1009e78e7d0745a49e0bf418b37abb)
Signed-off-by: Charlie Davies <charles.davies@whitetree.xyz>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>