tbf/vty: Fix the CS output and show the EGPRS MS class

Currently only the GPRS MS class and the DL CS (even for UL TBFs)
are shown.

Add the EGPRS MS class and use the TBF's real CS.

Sponsored-by: On-Waves ehf
diff --git a/src/pcu_vty_functions.cpp b/src/pcu_vty_functions.cpp
index a5430f9..2f7cb02 100644
--- a/src/pcu_vty_functions.cpp
+++ b/src/pcu_vty_functions.cpp
@@ -46,17 +46,17 @@
 			tbf->direction == GPRS_RLCMAC_UL_TBF ? "UL" : "DL",
 			tbf->imsi(), VTY_NEWLINE);
 	vty_out(vty, " created=%lu state=%08x 1st_TS=%d 1st_cTS=%d ctrl_TS=%d "
-			"MS_CLASS=%d%s",
+			"MS_CLASS=%d/%d%s",
 			tbf->created_ts(), tbf->state_flags, tbf->first_ts,
 			tbf->first_common_ts, tbf->control_ts, tbf->ms_class(),
+			tbf->ms() ? tbf->ms()->egprs_ms_class() : -1,
 			VTY_NEWLINE);
 	vty_out(vty, " TS_alloc=");
 	for (int i = 0; i < 8; i++) {
 		if (tbf->pdch[i])
 			vty_out(vty, "%d ", i);
 	}
-	vty_out(vty, " CS=%s%s%s",
-		tbf->ms() ? tbf->ms()->current_cs_dl().name() : "???",
+	vty_out(vty, " CS=%s%s%s", tbf->current_cs().name(),
 		VTY_NEWLINE, VTY_NEWLINE);
 }