{linux, linux-headers}: bump 5.{4, 10}.x 4.{4, 9, 14, 19} series

{linux, linux-headers}: bump 5.{4, 10}.x 4.{4, 9, 14, 19} series

Stick to 4.4.255 / 4.4.255 even though .256 is ready, as the wraparound of
the minor version may cause problems:

https://lkml.org/lkml/2021/2/5/747
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.256

https://lkml.org/lkml/2021/2/5/862
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.256

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Peter: stick to 4.{4,9}.255]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>