[SKIP CI] .github: compile-test multiple zephyr revisions + IPC4

[marc-hb]

This will show very clearly:

• upstream Zephyr regressions
• upstream Zephyr progressions / fixes

Signed-off-by: Marc Herbert marc.herbert@intel.com

[marc-hb]

https://github.com/thesofproject/sof/runs/7670328679 shows that one Zephyr revision builds fine while another revision fails to build which is a perfect demonstration of the intended effect:

zephyr/CMakeFiles/offsets.dir/arch/xtensa/core/offsets/offsets.c.obj -c /workspace/zephyr/arch/xtensa/core/offsets/offsets.c
In file included from /workspace/zephyr/include/zephyr/arch/xtensa/arch.h:27,
from /workspace/zephyr/include/zephyr/arch/cpu.h:27,
from /workspace/zephyr/include/zephyr/kernel_includes.h:33,
from /workspace/zephyr/include/zephyr/kernel.h:17,
from /workspace/zephyr/include/zephyr/init.h:11,
from /workspace/zephyr/include/zephyr/device.h:29,
from /workspace/zephyr/kernel/include/kernel_offsets.h:6,
from /workspace/zephyr/arch/xtensa/core/offsets/offsets.c:7:
/workspace/zephyr/include/zephyr/arch/xtensa/irq.h:10:10: fatal error: xtensa/config/core-isa.h: No such file or directory
10 | #include <xtensa/config/core-isa.h>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.