SE K2xx phones use a different PA than GTA0x/FCDEV3B, so the compiled-in Tx ramp templates must match the actual hardware. Replace the previously copied GTA0x ramps with values extracted from the SE K2xx official firmware using the calextract tool from the freecalypso-reveng repository:
Set afc_slope to 405 and afc_initial_dac_value to -370, derived from AFC parameter averages computed across TIFFS readings of 7 unique SE K2xx units (5 x K200i + 1 x K205i + 1 x K220i).
mobile: gsm48_cc_tx_release_compl(): actually send the message
The message buffer is allocated, filled in, and then leaked when `trans_free(trans)` is called. The RELEASE COMPLETE message is never transmitted to the network.
