move talloc context creation out of on_dso / constructors
the various constructors get called in a non-obvious, linker determined
order, which makes certain objects disappear from the talloc report.
This change moves the talloc context creation into a new talloc_ctx.c file
diff --git a/openbsc/src/Makefile.am b/openbsc/src/Makefile.am
index d7a8462..cbfeeaa 100644
--- a/openbsc/src/Makefile.am
+++ b/openbsc/src/Makefile.am
@@ -9,7 +9,7 @@
gsm_subscriber.c msgb.c select.c chan_alloc.c timer.c debug.c db.c \
gsm_04_11.c telnet_interface.c subchan_demux.c \
trau_frame.c trau_mux.c paging.c e1_config.c e1_input.c tlv_parser.c \
- input/misdn.c input/ipaccess.c signal.c gsm_utils.c talloc.c \
+ input/misdn.c input/ipaccess.c signal.c gsm_utils.c talloc.c talloc_ctx.c \
transaction.c rtp_proxy.c bsc_rll.c token_auth.c
libvty_a_SOURCES = vty/buffer.c vty/command.c vty/vector.c vty/vty.c