gitlab-ci: Replace aarch64 with arm in cross-i686-tci build

Configuration of 64-bit host on 32-bit guest will shortly
be denied.  Use a 32-bit guest instead.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
1 file changed