firmware: microchip: fix wrong sizeof argument

response_msg is a pointer to an unsigned int (u32). So passing just
response_msg to sizeof would not print the size of the variable. To get
the size of response_msg we need to pass it as a pointer variable.

Fixes: ec5b0f11 ("firmware: microchip: add PolarFire SoC Auto Update support")
Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

drivers/firmware/microchip/mpfs-auto-update.c

@@ -167,7 +167,7 @@ static int mpfs_auto_update_verify_image(struct fw_upload *fw_uploader)
 	u32 *response_msg;
 	int ret;
 
-	response_msg = devm_kzalloc(priv->dev, AUTO_UPDATE_FEATURE_RESP_SIZE * sizeof(response_msg),
+	response_msg = devm_kzalloc(priv->dev, AUTO_UPDATE_FEATURE_RESP_SIZE * sizeof(*response_msg),
 				    GFP_KERNEL);
 	if (!response_msg)
 		return -ENOMEM;