move {ts,lchan}2chan_nr() functions to gsm_data_shared.c
... this way osmo-bts can use them
diff --git a/openbsc/src/libbsc/gsm_04_08_utils.c b/openbsc/src/libbsc/gsm_04_08_utils.c
index 4d8bdc6..17bce85 100644
--- a/openbsc/src/libbsc/gsm_04_08_utils.c
+++ b/openbsc/src/libbsc/gsm_04_08_utils.c
@@ -345,7 +345,7 @@
{
uint16_t arfcn = lchan->ts->trx->arfcn & 0x3ff;
- cd->chan_nr = lchan2chan_nr(lchan);
+ cd->chan_nr = gsm_lchan2chan_nr(lchan);
if (!lchan->ts->hopping.enabled) {
cd->h0.tsc = lchan->ts->trx->bts->tsc;
cd->h0.h = 0;