Merge branch 'markup-some-printk-like-functions'

Andrew Lunn says:

====================
Markup some printk like functions

W=1 warns of functions which look like printk but don't have
attributes so the compile can check that arguments matches the format
string.
====================

Link: https://lore.kernel.org/r/20201028003849.929490-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>