Bluetooth: hci_qca: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for QCA UART Radio

QCA UART Bluetooth controllers can do both LE scan and BR/EDR inquiry
at once, need to set HCI_QUIRK_SIMULTANEOUS_DISCOVERY quirk.

Signed-off-by: Rocky Liao <rjliao@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>