i2c: img-scb: use line_status instead of i2c->line_status

i2c->line_status accumulates the line status bits that have been seen
with each interrupt. As we're only interested in that bit from the
current interrupt, refer to line_status (the argument to img_i2c_auto)
instead of i2c->line_status.

Signed-off-by: Sifan Naeem <sifan.naeem@imgtec.com>
Reviewed-by: James Hartley <james.hartley@imgtec.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-img-scb.c

@@ -857,7 +857,7 @@ static unsigned int img_i2c_auto(struct img_i2c *i2c,
 	}
 
 	/* Enable transaction halt on start bit */
-	if (!i2c->last_msg && i2c->line_status & LINESTAT_START_BIT_DET) {
+	if (!i2c->last_msg && line_status & LINESTAT_START_BIT_DET) {
 		img_i2c_transaction_halt(i2c, true);
 		/* we're no longer interested in the slave event */
 		i2c->int_enable &= ~INT_SLAVE_EVENT;