The previous gprs/protocol/gsm_04_60.h header from libosmogsm was
misleading because it was placed in the subdirectory used by libosmogb,
and hence was recently deprecated in favour of gsm/protocol/gsm_04_60.h.
Let's follow the pragma message advising to move to the new header file.
Depends: libosmocore 0158b05337a825352d9fd7f074170b686e9fd1e5
Change-Id: I027abbf3ed4c71331000565af1ef4f08f10cfafc
While libosmogb / ns2 supports that natively in the VTY, the PCU
doesn't want to use the complexities of the full NS2 vty.
Change-Id: I7bfbad46582e65e5ad2ac0cc66545538bc632df8
Related: SYS#5427
Recent commit started using ->is_sgsn field which is only available as
of current libosmocore master (> 1.5.1)
Fixes: 423bf8c408
Change-Id: I3d579bd253363efc3cf183a922d6affca1a499e0