import gsm48_decode_lai() function from osmocom-bb/mobile sysinfo.c
diff --git a/include/osmocom/gsm/gsm48.h b/include/osmocom/gsm/gsm48.h
index 16a625a..1e7498a 100644
--- a/include/osmocom/gsm/gsm48.h
+++ b/include/osmocom/gsm/gsm48.h
@@ -20,6 +20,8 @@
const char *gsm48_cc_msg_name(uint8_t msgtype);
const char *rr_cause_name(uint8_t cause);
+int gsm48_decode_lai(struct gsm48_loc_area_id *lai, uint16_t *mcc,
+ uint16_t *mnc, uint16_t *lac);
void gsm48_generate_lai(struct gsm48_loc_area_id *lai48, uint16_t mcc,
uint16_t mnc, uint16_t lac);
int gsm48_generate_mid_from_tmsi(uint8_t *buf, uint32_t tmsi);