Move struct gsm_bts_trx: gsm-data.* => bts_trx.*

See rant fro similar recent commit moving stuff to bts.*.

Change-Id: I11758ca3d255d849d77bd068f24bb68bde1f89a5
diff --git a/tests/gsm0408/Makefile.am b/tests/gsm0408/Makefile.am
index 21b7873..790f3aa 100644
--- a/tests/gsm0408/Makefile.am
+++ b/tests/gsm0408/Makefile.am
@@ -23,9 +23,11 @@
 	$(NULL)
 
 gsm0408_test_LDADD = \
+	$(top_builddir)/src/osmo-bsc/abis_nm.o \
 	$(top_builddir)/src/osmo-bsc/gsm_04_08_rr.o \
 	$(top_builddir)/src/osmo-bsc/arfcn_range_encode.o \
 	$(top_builddir)/src/osmo-bsc/bts.o \
+	$(top_builddir)/src/osmo-bsc/bts_trx.o \
 	$(top_builddir)/src/osmo-bsc/gsm_data.o \
 	$(top_builddir)/src/osmo-bsc/net_init.o \
 	$(top_builddir)/src/osmo-bsc/rest_octets.o \