loadtools/scripts: w220.{config,init} => chimei.{config,init} Motorola W220, first touched by FreeCalypso in 2019-05, is an ODM phone made by Chi-Mei, and its peculiar property of relevance to loadtools is that it has XRAM on Calypso nCS3 instead of the usual nCS1 - which matters for fc-xram. We are now discovering other Chi-Mei phones including Sony Ericsson J120, and they share the same quirk of XRAM on nCS3 - hence we rename this loadtools target from w220 to chimei.

/*
 * This header file defines the loop-count timeout value that should
 * be passed to the rx_sim_byte() function.  By the spec we have to wait
 * 9600 etu's; at 3.25 MHz SIM clock and the default slow mode (no speed
 * enhancement) this 9600 etu number translates to about 1.10 s.
 *
 * The constant defined here has been calibrated empirically; the measured
 * timeout is about 1.38 s, giving us reasonable safety margin.
 */

#define	SIM_WAIT_TIMEOUT	6000000