coding: implement TCH/F9.6, TCH/[FH]4.8, TCH/H2.4, TCH/F14.4

Implement all CSD specific channel modes, except TCH/F2.4.  All of
these modes are more or less similar to each other.  The TCH/F2.4
is more similar to TCH/FS and slightly more complicated.

FACCH/F and FACCH/H will be implemented in a follow-up change.

Change-Id: Ib482817b5f6a4e3c7299f6e0b3841143b60fc93d
Related: OS#1572
diff --git a/src/coding/libosmocoding.map b/src/coding/libosmocoding.map
index a78da27..a645a58 100644
--- a/src/coding/libosmocoding.map
+++ b/src/coding/libosmocoding.map
@@ -129,5 +129,16 @@
 gsm0503_detect_afs_dtx_frame2;
 gsm0503_detect_ahs_dtx_frame2;
 
+gsm0503_tch_fr96_encode;
+gsm0503_tch_fr96_decode;
+gsm0503_tch_fr48_encode;
+gsm0503_tch_fr48_decode;
+gsm0503_tch_hr48_encode;
+gsm0503_tch_hr48_decode;
+gsm0503_tch_hr24_encode;
+gsm0503_tch_hr24_decode;
+gsm0503_tch_fr144_encode;
+gsm0503_tch_fr144_decode;
+
 local: *;
 };