QNX service discovery for dual mode devices fix

For devices which have standard and LE services
LE services were not read.
Discovery of all custom services implemented.

Change-Id: I41c89d8d4ea442153c12cd647fd2cd1a6dd7f0f7
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>