tree ba0cf71c863d636974ef53be75688f9b885dbebd
parent d4d90f8eea61cb38dc23f5d05fe06e5a0d5a86cf
author Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no> 1620986157 +0200
committer Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no> 1621258992 +0200

boot_serial: allow to build when CONFIG_MULTITHREADING=n

For zephyr-rtos:
K_sleep() is not available when multithreading is disabled.
Let's use k_busy_wait() in that case.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>