QNX: Fix update progress
QNX: Fix update progress

The string format can only be converted to a double for very high numbers.

Change-Id: I20e284eb24761dcb11a4777baf37782752b95bb6
Reviewed-by: Alex Blasche <429ec4e831e8320529ddfedc4983cef56f3f7ae1@digia.com>

kobolabs/qtconnectivity,kobolabs/qtconnectivity,kobolabs/qtconnectivity