mobile: use tch_send_msg() in tch_csd_tx_to_l1()

Do not access the RR API directly, use TCH API for sending UL data.

Change-Id: Icd5b5fad835feecd96a83fa5c83ed08037826fa6
Related: OS#4396
---
M src/host/layer23/src/mobile/tch_data.c
1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/host/layer23/src/mobile/tch_data.c b/src/host/layer23/src/mobile/tch_data.c
index 5474bdf..7f0a330 100644
--- a/src/host/layer23/src/mobile/tch_data.c
+++ b/src/host/layer23/src/mobile/tch_data.c
@@ -407,7 +407,7 @@
 		OSMO_ASSERT(0);
 	}
 
-	return gsm48_rr_tx_traffic(ms, nmsg);
+	return tch_send_msg(ms, nmsg);
 }
 
 static int tch_data_check_bcap(const struct gsm_mncc_bearer_cap *bcap)

