net: ar8327: replace sprintf() by scnprintf()

Import from fd0c41c7b9%5E%21/#F0
Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>

CHROMIUM: drivers: ar8216: replace sprintf() by scnprintf()

BUG=chrome-os-partner:33096
TEST=none

Change-Id: Ib82035c9f2769a86d3e90f9573a09e5700ff5676
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Reviewed-on: https://chromium-review.googlesource.com/232829
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Toshi Kikuchi <toshik@chromium.org>
Reviewed-by: Toshi Kikuchi <toshik@chromium.org>

target/linux/generic/files/drivers/net/phy/ar8327.c

@@ -306,7 +306,7 @@ ar8327_led_enable_hw_mode_show(struct device *dev,
 	struct ar8327_led *aled = led_cdev_to_ar8327_led(led_cdev);
 	ssize_t ret = 0;
 
-	ret += sprintf(buf, "%d\n", aled->enable_hw_mode);
+	ret += scnprintf(buf, PAGE_SIZE, "%d\n", aled->enable_hw_mode);
 
 	return ret;
 }
@@ -1433,4 +1433,3 @@ const struct ar8xxx_chip ar8337_chip = {
 	.mib_decs = ar8236_mibs,
 	.mib_func = AR8327_REG_MIB_FUNC
 };
-