Minor fixes to blackberry-x86-qcc_developer-build_Ubuntu_12.04_x64

Organizing configure options a bit (alphabetically) and fixing the PATH
environment variable.

Change-Id: Ibf819ca29bef542ad0048f3ef24c0e88bed7f9c8
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>
Add blackberry-armv7le-qcc stage to CI

Initial set of configure options for the blackberry-armv7le-qcc mkspec

Change-Id: If08b1766df7b522d17f9c6fcdd1d7b74b89807f2
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>