Bluetooth: btbcm: Add a delay for module reset

Bluetooth: btbcm: Add a delay for module reset

BugLink: https://launchpad.net/bugs/1483101
Some btbcm devices require more time to complete its reset process.
They won't reply any hci command until reset is done.

[ 17.218554] Bluetooth: hci0 command 0x1001 tx timeout
[ 25.214999] Bluetooth: hci0: BCM: Reading local version info failed (-110)

Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
(cherry picked from commit 3af3a594e111474fab03d872f41760e10d4c17c4)
Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>