QtIFW

Update binary patcher functionality on Mac

Use regular expression to find match from "otool -l" output. Previously
the patcher relied on:

- Pre-determined indicator to find match from "otool -l" output.
- That the Qt was configured without "-no-rpath" option which is not
  always the case.

This change uses regular expression to find Qt library matches from
"otool" output. Now the Qt can be compiled with or without "-no-rpath"
option and does not rely on pre-determined indicator what to match from
"otool" output.

Change-Id: I0aa581e6f9faec621bed29cdcf9ef4290cd514cf
Reviewed-by: Simo Fält <simo.falt@nokia.com>
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>