csp_thread: zephyr: Replace thread_create_static in samples/arch
zephyr/samples/arch/main.c is Zephyr specific.  We don't need any
wrapper function to create a thread.  Replace the wrapper function
csp_thread_create_static with Zephyr native thread creation function.
@@ -46,11 +46,11 @@ int main(int argc, char * argv[]) {
k_tid_t tid;
struct k_thread new_thread;
- tid = csp_zephyr_thread_create_static(&new_thread, "thread",
+ tid = k_thread_create(&new_thread,
stack, K_THREAD_STACK_SIZEOF(stack),
- thread_func, NULL, 0);
- //csp_assert(res == CSP_ERR_NONE);
- //csp_assert(thread != 0);
+ thread_func, NULL, NULL, NULL,
+ 0, 0, K_NO_WAIT);
+ csp_assert(tid != NULL);
// clock
csp_timestamp_t csp_clock = {};
