[Bluetooth] Read local version information on device init

The local version information are needed to identify certain feature
sets of devices. They must be read on device init and stored for later
use. It is also possible to access them through the device model.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

include/net/bluetooth/hci_core.h

@@ -72,6 +72,9 @@ struct hci_dev {
 	__u8		type;
 	bdaddr_t	bdaddr;
 	__u8		features[8];
+	__u8		hci_ver;
+	__u16		hci_rev;
+	__u16		manufacturer;
 	__u16		voice_setting;
 
 	__u16		pkt_type;