moved sidlink L1 functions to LTE_UE_TRANSPORT, corrected issue related to "find_dlsch" which is needed to compile UE and creates problem for unitary simulations (moved to lte-ue.c application)

targets/RT/USER/lte-ue.c

@@ -2355,3 +2355,14 @@ int init_timer_thread(void) {
   pthread_create(&phy_stub_ticking->pthread_timer, NULL, &timer_thread, NULL);
   return 0;
 }
+
+
+/* HACK: this function is needed to compile the UE
+ * fix it somehow
+ */
+int8_t find_dlsch(uint16_t rnti, PHY_VARS_eNB *eNB,find_type_t type)
+{
+  printf("you cannot read this\n");
+  abort();
+}
+