qemu: exit for boot test only otherwise spin

Keep spinning in case user needs to inspect status via monitor.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

Author: lrgirdwo

app/src/main.c

@@ -57,7 +57,7 @@ static int sof_app_main(void)
 	return 0;
 }
 
-#if CONFIG_SOF_BOOT_TEST && defined(QEMU_BOOT_TESTS)
+#if defined(QEMU_BOOT_TESTS)
 /* cleanly exit qemu so CI can continue and check test results */
 static inline void qemu_xtensa_exit(int status)
 {
@@ -73,6 +73,18 @@ static inline void qemu_xtensa_exit(int status)
 }
 #endif
 
+#ifdef CONFIG_REBOOT
+void sys_arch_reboot(int type)
+{
+#if defined(QEMU_BOOT_TESTS)
+	qemu_xtensa_exit(type);
+#endif
+	while (1) {
+		k_cpu_idle();
+	}
+}
+#endif
+
 #if CONFIG_ZTEST
 void test_main(void)
 {