Bluetooth: hci_qca: Add support for Qualcomm Bluetooth SoC QCA6390

This patch adds support for QCA6390, including the devicetree and acpi
compatible hwid matching, and patch/nvm downloading.

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