rnti_pool: add rrc_endc class and extra 1024B to UE memblock size

this should fix #3045

however, this hard-coded size seems pretty unflexible anyway so we might
have to increase/add to it, or find an alternative way to calculate the size?

srsenb/src/common/rnti_pool.cc

@@ -13,6 +13,7 @@
 #include "srsenb/hdr/common/rnti_pool.h"
 #include "srsenb/hdr/common/common_enb.h"
 #include "srsenb/hdr/stack/mac/ue.h"
+#include "srsenb/hdr/stack/rrc/rrc_endc.h"
 #include "srsenb/hdr/stack/rrc/rrc_mobility.h"
 #include "srsenb/hdr/stack/rrc/rrc_ue.h"
 #include "srsran/adt/pool/circular_stack_pool.h"
@@ -21,8 +22,8 @@
 
 namespace srsenb {
 
-const static size_t UE_MEM_BLOCK_SIZE =
-    sizeof(ue) + sizeof(rrc::ue) + sizeof(rrc::ue::rrc_mobility) + sizeof(srsran::rlc) + sizeof(srsran::pdcp);
+const static size_t UE_MEM_BLOCK_SIZE = 1024 + sizeof(ue) + sizeof(rrc::ue) + sizeof(rrc::ue::rrc_mobility) +
+                                        sizeof(rrc::ue::rrc_endc) + sizeof(srsran::rlc) + sizeof(srsran::pdcp);
 
 srsran::circular_stack_pool<SRSENB_MAX_UES>* get_rnti_pool()
 {