move asn1helpers.[ch] to libasn1c
Those helper functions are not specific to osmo-iuh, so I moved
them to libasn1c, which also resolves the problem that libosmo-ranap
is depending on those helpers (and subsequently external programs
linking libosmo-ranap will need to have access to the helpers)
diff --git a/src/Makefile.am b/src/Makefile.am
index 6dbd73e..9e0f59d 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -41,7 +41,7 @@
osmo_hnbgw_SOURCES = hnbap_encoder.c hnbap_decoder.c hnbap_common.c \
rua_encoder.c rua_decoder.c rua_common.c \
- asn1helpers.c sccp_helpers.c \
+ sccp_helpers.c \
hnbgw.c hnbgw_hnbap.c hnbgw_rua.c hnbgw_ranap.c \
context_map.c hnbgw_cn.c