[nrf fromlist] drivers: can: can_nrf: add missing soc.h include

The can_nrf driver uses defines from soc.h which happened to be
included by some other header when building for cpuapp, but not
when building for cpuflpr. Include soc.h explicitly.

Upstream PR #: 101990

Signed-off-by: Bjarki Arge Andreasen <[email protected]>

Author: bjarki-andreasen

drivers/can/can_nrf.c

@@ -16,6 +16,7 @@
 #include <zephyr/drivers/clock_control/nrf_clock_control.h>
 #include <zephyr/drivers/pinctrl.h>
 #include <zephyr/irq.h>
+#include <soc.h>
 
 /* nRF CAN wrapper offsets */
 #define CAN_TASKS_START	  offsetof(NRF_CAN_Type, TASKS_START)