sci-libs/sundials: 3.2.1 version bump

sci-libs/sundials: 3.2.1 version bump

This commit adds 'sci-libs/sundials-3.2.1' and replaces 'versionator'
with 'eapi7-ver' in 'inherit' section.

It seems that the block:

        if [[ lib != $(get_libdir) ]]; then
                mv "${ED%/}"/usr/lib "${ED%/}"/usr/$(get_libdir) || die
        fi

within 'src_install()' section isn't required anymore
since sundials-3.2.1 so it's removed here.

Closes: https://github.com/gentoo/gentoo/pull/12309
Signed-off-by: Sergey Torokhov <torokhov_s_a@mail.ru>
Signed-off-by: Matthias Maier <tamiko@gentoo.org>