soc: arm: nxp: kinetis: ke1xf: determine hw clock cycles/sec from dts

Determine the default CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC from devicetree
when using the Arm SysTick hardware timer.

When the NXP KE1xF SoC series is using the Arm SysTick as hardware
timer, the cycles/second will always be equal to the CPU core clock
frequency.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
3 files changed