tests/functional: Move riscv32/riscv64 tests into target-specific folders

The opensbi test is used for both, riscv32 and riscv64. Copy the main
test to the riscv64 folder and add a simple wrapper to the riscv32
folder to be able to run it for that target, too.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20250819112403.432587-18-thuth@redhat.com>
11 files changed