Correct isDirect in BluetoothGatt#connect

isDirect was !mAutoConnect when it was first connected
(in mBluetoothCallback#onClientRegistered)
but it was always false in reconnect

Tag: #stability
Bug: 233292528
Test: atest BluetoothInstrumentationTests
Change-Id: Ic7913d6612fc292d3e9d48c6b49faffe1f6a3034