[SKIP SOF-TEST] .github/zephyr: align hal_xtensa when compiling with Zephyr main branch

[marc-hb]

We import hal_xtensa indirectly through zephyr/west.yml.

When overriding the Zephyr revision in sof/west.yml to test the Zephyr main branch "zmain", we must also update the version of hal_xtensa specified in zephyr/west.yml. Stop doing a manual, single repo git fetch and use a submanifest to perform this correctly. This is exactly why submanifests/ were added in the first place.

These fixes the imx8m compilation error spotted and discussed in (unrelated) #7579 following the IMX rename

• Add uart support for nxp_adsp_8m zephyrproject-rtos/zephyr#57084
• boards: xtensa: nxp_adsp_imx8m: include pinctrl dtsi in overlay zephyrproject-rtos/zephyr#57795

[iuliana-prodan]

@marc-hb can you please, help me a bit with this failure?

I see here that is using Zephyr's revision: HEAD is now at 3e02d48e4 ("driver: adc: infineon: Adding ADC driver"), which doesn't have the commits from zephyrproject-rtos/zephyr#57084, but it complaints on "fatal error: nxp/nxp_imx/mimx8ml8dvnlz-pinctrl.dtsi: No such file or directory" - this dtsi is added in this commit, part of the aforementioned PR.

Originally posted by @iuliana-prodan in #7579 (comment)

There is a mimx8ml8dvnlz.dtsi file in this commit but I don't see any mimx8ml8dvnlz-pinctrl.dtsi. Did you run "git status"?

The mimx8ml8dvnlz-pinctrl.dtsi is taken from nxp_hal - sorry, I was wrong when saying that it is added in this commit.
On my side I did a west update in zephyr and all modules (and hals) were brought so the dtsi was found, therefore no error.

Let me see how to fix this, I don't want to bring nxp_hal when compiling SOF with zephyr - for now it is not needed.

I'll answer here to this comment, also.
The west build -p always -b nxp_adsp_imx8m ../modules/audio/sof/ -- -DTOOLCHAIN=/opt/zephyr-sdk-0.15.2/xtensa-nxp_imx8m_adsp_zephyr-elf/bin/xtensa-nxp_imx8m_adsp_zephyr-elf -DINIT_CONFIG=imx8m_defconfig is incomplete.
As discussed here, the correct way to give SOF as a sample app in Zephyr is modules/audio/sof/**app**.
Also, some of these warnings/errors were solved here: #7533

The

 compiler_info.h:40:17: error: initializer-string for array of 'unsigned char' is too long [-Werror]
   40 | #define CC_DESC " " XCC_TOOLS_VERSION

was not fixed (only locally on my machine :) ) because it was only related with NXP i.MX8MP, since the XCC_TOOLS_VERSION is too long (xtensa-nxp_imx8m_adsp_zephyr...), more than 32 as defined here.

[iuliana-prodan]

@marc-hb I've fix it in zephyrproject-rtos/zephyr#57795
Added also a PR, in SOF, for testing this: #7591

[marc-hb]

https://github.com/thesofproject/sof/actions/runs/4951673081/jobs/8856954534?pr=7586 is now passing \o/

One final touch and will mark "ready for review" today.

[marc-hb]

https://github.com/thesofproject/sof/actions/runs/4952716704/jobs/8859424902 fixed and looking good.

[ranj063]

PR testing skipped as this is pure .github/action change