[OpenMP][OMPT] Fix `omp_control_tool` before any directive (#191429)

When a user calls `omp_control_tool`, a tool is attached and it
registered the `ompt_control_tool` callback, the tool should receive a
callback with the users arguments.

However, in #112924, it was discovered that this only happens after at
least one host side directive or runtime call calling into
`__kmp_do_middle_initialize` has been executed.

The check for `__kmp_init_middle` in `FTN_CONTROL_TOOL` did not try to
do the middle initialization and instead always returned `-2` (no tool).
A tool therefore received no callback. The user program did not get the
info that there is a tool attached. To fix this, change the explicit
return to a call of `__kmp_middle_initialize()`, as done in several
other places of `libomp`.

Further handling is then done in `__kmp_control_tool`, where the values
`-2` (no tool), `-1` (no callback), or the tools return value are
returned.

Also expand the tests to introduce checks where no callaback is
registered, or `omp_control_tool` is called before any OpenMP directive.

Fixes #112924

CC @jprotze, @hansangbae

Signed-off-by: Jan André Reuter <j.reuter@fz-juelich.de>