Android: Fix debugger autodetection

Task-number: QTCREATORBUG-10341
Change-Id: I197ae5745d5caba12bce3e148ada2a589ac7f9b3
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Android: Don't check Qt version for secondary toolchains

Change-Id: Iee529e1c43c4b1a37d7894edee0ea4ecc81762d2
Reviewed-by: Daniel Teske <daniel.teske@digia.com>