!10691 Bluetooth: qca: Fix BT enable failure again for QCA6390 after warm reboot

	struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);

	struct hci_uart *hu = &qcadev->serdev_hu;

	struct hci_dev *hdev = hu->hdev;

	struct qca_data *qca = hu->priv;

	const u8 ibs_wake_cmd[] = { 0xFD };

	const u8 edl_reset_soc_cmd[] = { 0x01, 0x00, 0xFC, 0x01, 0x05 };

	if (qcadev->btsoc_type == QCA_QCA6390) {

		if (test_bit(QCA_BT_OFF, &qca->flags) ||

		    !test_bit(HCI_RUNNING, &hdev->flags))

		/* The purpose of sending the VSC is to reset SOC into a initial

		 * state and the state will ensure next hdev->setup() success.

		 * if HCI_QUIRK_NON_PERSISTENT_SETUP is set, it means that

		 * hdev->setup() can do its job regardless of SoC state, so

		 * don't need to send the VSC.

		 * if HCI_SETUP is set, it means that hdev->setup() was never

		 * invoked and the SOC is already in the initial state, so

		 * don't also need to send the VSC.

		 */

		if (test_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks) ||

		    hci_dev_test_flag(hdev, HCI_SETUP))

			return;

		/* The serdev must be in open state when conrol logic arrives

		 * here, so also fix the use-after-free issue caused by that

		 * the serdev is flushed or wrote after it is closed.

		 */

		serdev_device_write_flush(serdev);

		ret = serdev_device_write_buf(serdev, ibs_wake_cmd,

					      sizeof(ibs_wake_cmd));