CVE-2026-89769 clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhp_setup_state error path

In the Linux kernel, the following vulnerability has been resolved: clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhpsetupstate error path When cpuhpsetupstate fails after pitclockeventpercpuinit has successfully called requestirq, the error handling jumps directly to outpitclocksourceunregister...