target-utils: added 10 ms delay at the end of abb_power_off() The deosmification of the ABB access code (replacement of osmo_delay_ms() bogus delays with correctly-timed ones, which are significantly shorter) had one annoying side effect: when executing the poweroff command from any of the programs, one last '=' prompt character was being sent (and received by the x86 host) as the Calypso board powers off. With delays being shorter now, the abb_power_off() function was returning and the standalone program's main loop was printing its prompt before the Iota chip fully executed the switch-off sequence! I thought about inserting an endless tight loop at the end of the abb_power_off() function, but the implemented solution of a 10 ms delay is a little nicer IMO because if the DEVOFF operation doesn't happen for some reason in a manual hacking scenario, there won't be an artificial blocker in the form of a tight loop keeping us from further poking around.

/*
 * This header file contains definitions for the
 * custom voice TCH rerouting feature that
 * has been implemented as an experiment in the
 * FreeCalypso GSM firmware.
 */

#define	TCH_CONFIG_REQ	0x11
#define	TCH_CONFIG_CONF	0x12
#define	TCH_ULBITS_REQ	0x13
#define	TCH_ULBITS_CONF	0x14
#define	TCH_DLBITS_IND	0x15