linux-lxatac: update to kernel v6.4

[hnez]

umpf tag is now: 6.4/customers/lxa/lxatac/20230607-1 The tag includes the following topic branches:

• v6.4/customers/lxa/lxatac
• v6.4/topic/lxa-tac-dts-mainlining
• v6.4/topic/pwm-stm32
• v6.4/topic/pwm-backlight

The devictree has been split out into its own topic branch to start its mainlining journey.

The PR also contains a tweak to the perf recipe to build without NO_LIBTRACEEVENT to make it build with 6.4.

TODO before merging:

• [x] Wait for 6.4 to be released and update this PR to use the released tarball.

Related Pull Requests

This PR depends on the following other PRs which require coordination:

• [x] The tacd PR that changes the expected regulator names to the ones used in the new devicetrees linux-automation/tacd#26.

[hnez]

There is an upstream patch for the perf/libtraceevent build issue. We should likely update the perf.bbappend with its content.

[hnez]

I've looked into the upstream patch and have updated the perf.bbappend accordingly. I've however decided to keep the libtraceevent PKGCONFIG off, as it requires a bit more research. The time is better spent by just updating to a new upstream release that just ships with these changes once that's available. We can live with the current solution until then.

[hnez]

I've added a commit that updates the tacd to a version with linux-automation/tacd#26 merged, rebased on top of the recent langdale branch and checked if everything works as expected. It does, so I am going to merge it now …