AndroidDebugSupport: Set more accurate so-libsearch path

Task-number: QTCREATORBUG-10382

Change-Id: I6c38fda8a4bf70ae93f6ec7dd671878589056124
Reviewed-by: Robert Loehning <robert.loehning@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>
(cherry picked from commit eb5b9596398c401d043d20f81fd8b68b02ec5168)
Reviewed-by: Eike Ziller <eike.ziller@digia.com>