Rework the glibc execution into a common base class. Additionally tag
the tests with "toolchain-user" and "toolchain-system".
(From OE-Core rev: 94bf24268108774e022ad247c647e48a781debbb)
Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>