gsm: add gsm0808_speech_codec_type_names

Used for logging Speech Codec List entries in osmo-bsc, during handover
decision.

Change-Id: Ie6418d16db333188e9bcd2b32b7216f277ae8832
diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c
index abf3d25..c0be374 100644
--- a/src/gsm/gsm0808.c
+++ b/src/gsm/gsm0808.c
@@ -842,4 +842,18 @@
 	return get_value_string(gsm0808_bssap_names, msg_type);
 }
 
+const struct value_string gsm0808_speech_codec_type_names[] = {
+	{ GSM0808_SCT_FR1, "FR1" },
+	{ GSM0808_SCT_FR2, "FR2" },
+	{ GSM0808_SCT_FR3, "FR3" },
+	{ GSM0808_SCT_FR4, "FR4" },
+	{ GSM0808_SCT_FR5, "FR5" },
+	{ GSM0808_SCT_HR1, "HR1" },
+	{ GSM0808_SCT_HR3, "HR3" },
+	{ GSM0808_SCT_HR4, "HR4" },
+	{ GSM0808_SCT_HR6, "HR6" },
+	{ GSM0808_SCT_CSD, "CSD" },
+	{ 0, NULL }
+};
+
 /*! @} */
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 5611ba3..985ec83 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -172,6 +172,7 @@
 gsm0808_dec_cell_id_list;
 gsm0808_chan_type_to_speech_codec;
 gsm0808_speech_codec_from_chan_type;
+gsm0808_speech_codec_type_names;
 
 gsm0858_rsl_ul_meas_enc;