hsi: nokia-modem: fix uninitialized device pointer
hsi: nokia-modem: fix uninitialized device pointer

modem->device was never initialized. This resulted in logs such as:

[  241.386322] (NULL device *): CMT rst line change detected

Signed-off-by: Aaro Koskinen <13423a3f3006b5859cfceae66d59451f5eb4e205@iki.fi>
Signed-off-by: Sebastian Reichel <1ea78bda3cb6d36efdb8fc89aad6555e21b4887e@kernel.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs