Adapt PC to new LTP module building

[volodymyrkatkalov]

Build LTP from source partially (due to kernel-azure and kABI)

• Related ticket: https://progress.opensuse.org/issues/186263
• Verification run: TBD

[pevik]

LGTM. Could you please adapt it also in our code?

os-autoinst-distri-opensuse/tests/kernel/install_ltp.pm

Lines 173 to 179 in d41d8d1

	sub install_selected_from_git {
	prepare_ltp_git;
	assert_script_run('pushd testcases');
	foreach (get_submodules_to_rebuild()) {
	assert_script_run("pushd $_ && make && make install && popd", timeout => 600);
	}

Due the need to adapt the code also on two places I wished there would be in #22829 a single place to run the code. It'd be possible with a simple wrapper function which would either call $instance->run_ssh_command(...) (for PoC) or assert_script_run() (for QE kernel). The benefit would be that we never let your PoC runner fail in the future due possible necessary changes are implemented only in QE Kernel side.