develop_integration_w20 into develop

Summary of changes:

• bug fixes
  • UE TDD fixes
  • PDCCH size computation (at phy level, still to be corrected at mac level)
  • DAI increment
  • fix run_enb_ue_virt_noS1 and run_enb_ue_virt_s1 to use Rel14 and have --xforms to work
  • compilation warning removals
  • better oaisim logging (print UE security keys, print version (git commit ID) at runtime, print working directory)

openair3/NAS/TOOLS/display.c

@@ -248,6 +248,14 @@ void display_usim_data(const char *filename) {
 	memcpy(key, data.keys.ik, USIM_IK_SIZE);
 	printf("\tIK\t: \"%s\"\n", key);
 
+        printf("\n\tusim_api_k:");
+        for (int i = 0; i < 16; i++)
+          printf(" %2.2x", data.keys.usim_api_k[i]);
+        printf("\n\topc       :");
+        for (int i = 0; i < 16; i++)
+          printf(" %2.2x", data.keys.opc[i]);
+        printf("\n\n");
+
 	printf("EPS NAS security context:\n");
 	printf("\tKSIasme\t: 0x%.2x\n", data.securityctx.KSIasme.value[0]);
 	char kasme[USIM_K_ASME_SIZE + 1];