Tools: Testbench: Switch testbench to IPC4 mode

[singalsu]

The library_defconfig is changed to CONFIG_IPC_MAJOR_4=y.

To prepare release of testbench with SOF the executable name is changed to sof-testbench4.

The script comp_run.sh for process_test.m and other test scripts is changed to execute the IPC4 testbench version with use of other topology v2 topologies sof-hda-benchmark-.tplg.

the script host-testbench.sh is changed to run tests for component names in IPC4 test topologies.

TODO: Fix valgrind issue in testbench, fix audio quality issue in config blob for multiband-DRC.