[review] xtest: regression: add case 1040

Addressing comments.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

host/xtest/regression_1000.c

@@ -3285,9 +3285,13 @@ static void *test_1040_thread(void *arg)
 	TEEC_Result res = TEEC_SUCCESS;
 	uint32_t err_orig = 0;
 	TEEC_Session session = { };
+	size_t loop_count = 100;
 	size_t n = 0;
 
-	while (n < 100) {
+	if (level == 0)
+		loop_count /= 2;
+
+	while (n < loop_count) {
 		res = xtest_teec_open_session(&session, &sims_test_ta_uuid,
 					      NULL, &err_orig);
 		if (res) {
@@ -3335,7 +3339,6 @@ static void xtest_tee_test_1040(ADBG_Case_t *c)
 		ADBG_EXPECT_TEEC_SUCCESS(c, arg[n].res);
 	}
 	Do_ADBG_EndSubCase(c, "Concurent invoke with panic in TA");
-
 }
 ADBG_CASE_DEFINE(regression, 1040, xtest_tee_test_1040,
 		 "Test panic in concurrent open/invoke/close session");