requestMtu seems like it can sometimes hang on some phones about meshtastic-android

[geeksville]

2020-05-24 08:51:06.081 32319-32382/com.geeksville.mesh D/BluetoothGatt: onClientConnectionState() - status=0 clientIf=6 device=24:6F:28:B2:00:B6
2020-05-24 08:51:06.081 32319-32382/com.geeksville.mesh I/com.geeksville.mesh.service.SafeBluetooth: new bluetooth connection state 2, status 0
2020-05-24 08:51:06.081 32319-32382/com.geeksville.mesh D/com.geeksville.mesh.service.SafeBluetooth: work connect is completed, resuming status=0, res=kotlin.Unit
2020-05-24 08:51:06.081 32319-32382/com.geeksville.mesh I/com.geeksville.mesh.service.RadioInterfaceService: Connected to radio!
2020-05-24 08:51:06.081 32319-32382/com.geeksville.mesh D/BluetoothGatt: refresh() - device: 24:6F:28:B2:00:B6
2020-05-24 08:51:06.082 32319-32382/com.geeksville.mesh D/com.geeksville.mesh.service.SafeBluetooth: Enqueuing work: reqMtu
2020-05-24 08:51:06.082 32319-32382/com.geeksville.mesh D/com.geeksville.mesh.service.SafeBluetooth$BluetoothContinuation: Starting work: reqMtu
2020-05-24 08:51:06.082 32319-32382/com.geeksville.mesh D/BluetoothGatt: configureMTU() - device: 24:6F:28:B2:00:B6 mtu: 512
2020-05-24 08:51:07.166 32319-32319/com.geeksville.mesh D/com.geeksville.mesh.ui.BTScanModel: onScanResult BTScanEntry(name=...f38, addr=...:3A)

[geeksville]

fixed in 28023b8