gsmtap: Set signal level and SNR fields

lqual (containing C/I value) is passed instead of SNR, but let's have
that better than nothing.

Change-Id: Ibe9502d42c8bd1b984069e7fd805dde87ecbab0c
diff --git a/src/pcu_l1_if.cpp b/src/pcu_l1_if.cpp
index 30d22bd..40e933e 100644
--- a/src/pcu_l1_if.cpp
+++ b/src/pcu_l1_if.cpp
@@ -347,7 +347,7 @@
 
 	if (rc < 0 && (bts->gsmtap_categ_mask & (1 <<PCU_GSMTAP_C_UL_UNKNOWN))) {
 		gsmtap_send(bts->gsmtap, data_ind->arfcn | GSMTAP_ARFCN_F_UPLINK, data_ind->ts_nr,
-			    GSMTAP_CHANNEL_UNKNOWN, 0, data_ind->fn, 0, 0, data_ind->data, data_ind->len);
+			    GSMTAP_CHANNEL_UNKNOWN, 0, data_ind->fn, meas.rssi, meas.link_qual, data_ind->data, data_ind->len);
 	}
 
 	return rc;