Move llc_* fields from BTS to PCU

Change-Id: Iffb916e53fdf99164ad07cd19e4b35a64136307e
diff --git a/src/gprs_bssgp_pcu.cpp b/src/gprs_bssgp_pcu.cpp
index c1a7a7d..1596d67 100644
--- a/src/gprs_bssgp_pcu.cpp
+++ b/src/gprs_bssgp_pcu.cpp
@@ -676,7 +676,7 @@
 	uint16_t bucket_time = the_pcu->vty.fc_bucket_time;
 
 	if (bucket_time == 0)
-		bucket_time = bts->force_llc_lifetime;
+		bucket_time = the_pcu->vty.force_llc_lifetime;
 
 	if (bucket_time == 0xffff)
 		bucket_size = FC_MAX_BUCKET_SIZE;