Change in flashrom[master]: spi25_statusreg: inline spi_write_register_flag()

[Nikolai Artemiev (Code Review)]

Attention is currently required from: Nico Huber, Edward O'Callaghan, Angel Pons, Sergii Dmytruk.
Nikolai Artemiev has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/59528 )

Change subject: spi25_statusreg: inline spi_write_register_flag()
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Patch Set 22:

(1 comment)

File spi25_statusreg.c:

https://review.coreboot.org/c/flashrom/+/59528/comment/897c59df_200c31c0 
PS21, Line 110: 	/* WRSR performs a self-timed erase before the changes take effect.
              : 	 * This may take 50-85 ms in most cases, and some chips apparently
              : 	 * allow running RDSR only once. Therefore pick an initial delay of
              : 	 * 100 ms, then wait in 10 ms steps until a total of 5 s have elapsed.
              : 	 */
              : 	int i = 0;
              : 	programmer_delay(100 * 1000);
              : 	while (spi_read_status_register(flash) & SPI_SR_WIP) {
              : 		if (++i > 490) {
              : 			msg_cerr("Error: WIP bit after WRSR never cleared\n");
              : 			return TIMEOUT_ERROR;
              : 		}
              : 		programmer_delay(10 * 1000);
              : 	}
              : 	return 0;
> This undoes changes to the waiting loop recently made in CB:58475.

Done, thanks!