Add tracepoint layer for Qt5.0.2

These recipes append to those supplied by meta-qt5 layer:
https://github.com/meta-qt5/meta-qt5
(tested against commit e02b1ca3c2d8525d5fb3321774136978eab465c9)

To use, in ~/.oe/conf/site.conf:

- Add SOURCERY_ANALYZER_INSTALLATION_HARDWARE set to the Sourcery
  Analyzer installation directory (this should contain bin, include,
  lib and share directories)

Also requires tools-lttng feature to be enabled.

original commit by: David Schofield <David_Schofield@mentor.com>,
https://github.com/some0274/meta-tracing/commit/
2fb1eaf0acb68c57a218054bccf8d7896ef65fb5

Signed-off-by: Fahad Usman <fahad_usman@mentor.com>

Conflicts:
	conf/layer.conf
Tidy up patch files

Previously the patch files contained small changes that were unnecessary,
these have been removed.

Also one of the tracepoints was incorrectly commented out, this has been
rectified (in qtbase/src/corelib/animation/qabstractanimation.cpp)
Replace met_tools tracepoints with standard LTTng 2 tracepoints.

This also removes the external dependency on having a local
MESA installation.
Merge pull request #10 from fahadusman/qt5-tracing-final

Qt5 tracing final