Merge branch 'atm-replace-in_interrupt-usage'

Sebastian Andrzej Siewior says:

====================
atm: Replace in_interrupt usage

this mini series contains the removal of in_interrupt() in drivers/atm
====================

Link: https://lore.kernel.org/r/20201116162117.387191-1-bigeasy@linutronix.de


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