net: can: replace strict_strtoul() with kstrtoul()

The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/can/at91_can.c
Simple merge

diff --cc drivers/net/can/janz-ican3.c
Simple merge

diff --cc drivers/net/can/slcan.c
Simple merge

diff --cc drivers/net/can/softing/softing_main.c
Simple merge