Qnx: Update user string when asking for token id PIN

The bbidtoken.csk is not explicit enough and the text should be
consistent with the one in the BlackBerry code signing page.

Change-Id: I76c0401bc322ab0f9ff3c7b2896c6c9e03267880
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>