modules: hal_nordic: Add missing nrfx_config entries for nRF54L15

Add nrfx_grtc related entries that were introduced in nrfx 3.4.0,
especially NRFX_GRTC_CONFIG_AUTOSTART that should be by default
set to 1.

(cherry picked from commit 902351a)

Original-Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
GitOrigin-RevId: 902351a
Change-Id: I8e049432fbea7877453b690c4111da5c3f6c91b0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/5434405
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Commit-Queue: Keith Short <keithshort@chromium.org>
Reviewed-by: Keith Short <keithshort@chromium.org>
Tested-by: Keith Short <keithshort@chromium.org>

modules/hal_nordic/nrfx/nrfx_config_nrf54l15_enga_application.h

@@ -249,6 +249,33 @@
 #define NRFX_GRTC_ENABLED 0
 #endif
 
+/**
+ * @brief NRFX_GRTC_CONFIG_SLEEP_ALLOWED
+ *
+ * Boolean. Accepted values: 0 and 1.
+ */
+#ifndef NRFX_GRTC_CONFIG_SLEEP_ALLOWED
+#define NRFX_GRTC_CONFIG_SLEEP_ALLOWED 0
+#endif
+
+/**
+ * @brief NRFX_GRTC_CONFIG_AUTOEN
+ *
+ * Boolean. Accepted values: 0 and 1.
+ */
+#ifndef NRFX_GRTC_CONFIG_AUTOEN
+#define NRFX_GRTC_CONFIG_AUTOEN 0
+#endif
+
+/**
+ * @brief NRFX_GRTC_CONFIG_AUTOSTART
+ *
+ * Boolean. Accepted values: 0 and 1.
+ */
+#ifndef NRFX_GRTC_CONFIG_AUTOSTART
+#define NRFX_GRTC_CONFIG_AUTOSTART 1
+#endif
+
 /**
  * @brief NRFX_GRTC_CONFIG_NUM_OF_CC_CHANNELS
  *