[nrf fromlist] tests: drivers: clock_control_api: move startup time to Kconfig

Moved target dependent startup time from header file to
Kconfig option to allow adding new targets with new .conf
file rather that modyfing source of the test. Adjusted
startup time for nRF54L09 and nRF54L20.

Upstream PR #: 88956

Signed-off-by: Michał Stasiak <[email protected]>
(cherry picked from commit 0955031)

Author: mstasiaknordic

tests/drivers/clock_control/clock_control_api/Kconfig

@@ -0,0 +1,13 @@
+# Copyright (c) 2025 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+config TEST_NRF_HF_STARTUP_TIME_US
+	int "Delay required for HF clock startup."
+	default 3000 if CONFIG_SOC_SERIES_NRF91X
+	default 500
+	depends on SOC_FAMILY_NORDIC_NRF
+	help
+	  Delay in microseconds required for high-frequency
+	  clock startup.
+
+source "Kconfig.zephyr"

tests/drivers/clock_control/clock_control_api/boards/nrf54l09pdk_nrf54l09_cpuapp.conf

@@ -0,0 +1 @@
+CONFIG_TEST_NRF_HF_STARTUP_TIME_US=1000

tests/drivers/clock_control/clock_control_api/boards/nrf54l20pdk_nrf54l20_cpuapp.conf

@@ -0,0 +1 @@
+CONFIG_TEST_NRF_HF_STARTUP_TIME_US=1000

tests/drivers/clock_control/clock_control_api/src/nrf_device_subsys.h

@@ -10,9 +10,7 @@
 static const struct device_subsys_data subsys_data[] = {
 	{
 		.subsys = CLOCK_CONTROL_NRF_SUBSYS_HF,
-		.startup_us =
-			IS_ENABLED(CONFIG_SOC_SERIES_NRF91X) ?
-				3000 : 500
+		.startup_us = CONFIG_TEST_NRF_HF_STARTUP_TIME_US
 	},
 #ifndef CONFIG_SOC_NRF52832
 	/* On nrf52832 LF clock cannot be stopped because it leads