i2c: amd-asf: Set cmd variable when encountering an error

In the event of ASF error during the transfer, update the cmd and exit
the process, as data processing is not performed when a command fails.

Co-developed-by: Sanket Goswami <[e-mail]>
Signed-off-by: Sanket Goswami <[e-mail]>
Signed-off-by: Shyam Sundar S K <[e-mail]>
Signed-off-by: Andi Shyti <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/i2c/busses/i2c-amd-asf-plat.c

···
 	/* Check if no error bits are set in target status register */
 	if (reg & ASF_ERROR_STATUS) {
 		/* Set bank as full */
-		cmd = 0;
+		cmd = 1;
 		reg |= GENMASK(3, 2);
 		outb_p(reg, ASFDATABNKSEL);
 	} else {