Bluetooth: controller: adding unittest for Central CIS Create

Adding unittests for basic Central CIS Create functionality

Signed-off-by: Erik Brockhoff <[email protected]>

Author: erbr-ot

tests/bluetooth/controller/common/src/helper_pdu.c

@@ -1213,8 +1213,8 @@ void helper_pdu_verify_cis_ind(const char *file, uint32_t line, struct pdu_data
 	zassert_mem_equal(pdu->llctrl.cis_ind.cis_sync_delay, p->cis_sync_delay,
 			  sizeof(p->cis_sync_delay),
 			  "cis_sync_delay mismatch.\nCalled at %s:%d\n", file, line);
-
-	pdu->llctrl.cis_ind.conn_event_count = p->conn_event_count;
+	zassert_equal(pdu->llctrl.cis_ind.conn_event_count, p->conn_event_count,
+		      "conn_event_count mismatch.\nCalled at %s:%d\n", file, line);
 }
 
 void helper_pdu_verify_cis_terminate_ind(const char *file, uint32_t line, struct pdu_data *pdu,