tests: kernel: timer: timer_api: reorder test_timer_remaining step

Move init_timer_data() out of k_usleep() tick alignment.
Compute rem_ticks just after busy_wait_ms() to avoid slew
due to 'now' and 'rem_ms' computations.
With slow CPU 32MHz: -2 Ticks.

Signed-off-by: Alexandre Bourdiol <[email protected]>

Author: ABOSTM

tests/kernel/timer/timer_api/src/main.c

@@ -610,14 +610,14 @@ void test_timer_remaining(void)
 	uint32_t slew_ticks;
 	uint64_t now;
 
-	k_usleep(1); /* align to tick */
 
 	init_timer_data();
+	k_usleep(1); /* align to tick */
 	k_timer_start(&remain_timer, K_MSEC(DURATION), K_NO_WAIT);
 	busy_wait_ms(DURATION / 2);
+	rem_ticks = k_timer_remaining_ticks(&remain_timer);
 	now = k_uptime_ticks();
 	rem_ms = k_timer_remaining_get(&remain_timer);
-	rem_ticks = k_timer_remaining_ticks(&remain_timer);
 	exp_ticks = k_timer_expires_ticks(&remain_timer);
 	k_timer_stop(&remain_timer);
 	TIMER_ASSERT(tdata.expire_cnt == 0, &remain_timer);