zephyr/atomic.h: add a no-op cast: (long)atomic_read()

[marc-hb]

Zephyr commit 174cb7f9f183 switched 'atomic_t' from 'int' to
'long' and broke SOF compilation as shown below.

Recent SOF commit 970d7d6 ("zephyr: update print messages for
64-bit atomics") switched all atomic_read() logs to "%ld" instead of
"%d" which fixed compilation with Zephyr after the switch but broke it
with Zephyr before the switch.

This no-op (long) cast makes SOF compatible with Zephyr both before and
after the switch.

Note the sof-logger does not make any difference between %ld and %d and
does not care.

Sample failure:

src/lib/dma.c: In function 'dma_get': sof/src/include/sof/trace/trace.h:290
 error: format '%d' expects argument of type 'int', but
 argument 5 has type 'atomic_val_t' {aka 'long int'} [-Werror=format=]

 290 |   printk("%llu " format "\n", platform_timer_get(NULL), \
     |                 ^~~~~~~

sof/src/lib/dma.c:119:2: note: in expansion of macro 'tr_info'

 119 |  tr_info(&dma_tr, "..., busy channels = %d", atomic_read(...))

Signed-off-by: Marc Herbert [email protected]

[marc-hb]

The Zephyr build fails on only one platform for an unrelated reason:

build-rimage/rimage -k modules/audio/sof/keys/otc_private_key.pem -o /workdir/zephyrproject/build-icl/zephyr/zephyr.ri -c modules/audio/sof/rimage/config/icl.toml -i 3 -e /workdir/zephyrproject/build-icl/zephyr/bootloader.elf.mod /workdir/zephyrproject/build-icl/zephyr/zephyr.elf.mod
error: section overlap between /workdir/zephyrproject/build-icl/zephyr/zephyr.elf.mod:20 and /workdir/zephyrproject/build-icl/zephyr/zephyr.elf.mod:22

     [0xbe048f80 : 0xbe049420] overlaps with [0xbe048f80 :0xbe053780]

EDIT: bisected to revert zephyrproject-rtos/zephyr#40319
EDIT2: temporarily excluding ICL in #5005

[lgirdwood]

SOFCI TEST

[lgirdwood]

Rerun CI as this is a Zephyr only change that is showing unrelated failures.

[marc-hb]

https://sof-ci.01.org/sofpr/PR5004/build11182/devicetest/?model=ADLP_RVP_NOCODEC&testcase=verify-kernel-boot-log is a race condition at boot, trying to run tests before the system is ready.

https://sof-ci.01.org/sofpr/PR5004/build11182/devicetest/?model=CML_RVP_SDW&testcase=check-suspend-resume-with-playback-5 is the usual rtcwake timeout

Everything else is green.

Zephyr build https://github.com/thesofproject/sof/runs/4254008709?check_suite_focus=true passing now that ICL has been excluded.

Checkpatch complains that it doesn't find the Zephyr commit in SOF history, no other warning.