dissolve libcommon: drop gsm_data.c, move code to libmsc

classmark_is_r99() is only used in gsm_04_08.c, move there as static.
rrlp_mode_* is only used in msc_vty.c, move there as static.
Move ran_type_names[] to msc_ifaces.c.

Change-Id: I5381c72af6841829fbc65940fd7d6f4d5cf583df
6 files changed