Merge branch 'dpll-add-phase-offset-averaging-factor'

Ivan Vecera says:

====================
dpll: add phase offset averaging factor

For some hardware, the phase shift may result from averaging previous values
and the newly measured value. In this case, the averaging is controlled by
a configurable averaging factor.

Add new device level attribute phase-offset-avg-factor, appropriate
callbacks and implement them in zl3073x driver.
====================

Link: https://patch.msgid.link/20250927084912.2343597-1-ivecera@redhat.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>