soundwire: Use min() to improve code

Use min() to reduce the code in qcom_swrm_xfer_msg() and improve its
readability.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Link: https://lore.kernel.org/r/20250814142428.282639-1-rongqianfeng@vivo.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: qianfengrong

drivers/soundwire/qcom.c

@@ -924,10 +924,7 @@ static enum sdw_command_response qcom_swrm_xfer_msg(struct sdw_bus *bus,
 
 	if (msg->flags == SDW_MSG_FLAG_READ) {
 		for (i = 0; i < msg->len;) {
-			if ((msg->len - i) < QCOM_SWRM_MAX_RD_LEN)
-				len = msg->len - i;
-			else
-				len = QCOM_SWRM_MAX_RD_LEN;
+			len = min(msg->len - i, QCOM_SWRM_MAX_RD_LEN);
 
 			ret = qcom_swrm_cmd_fifo_rd_cmd(ctrl, msg->dev_num,
 							msg->addr + i, len,