tzcode & tzdata: update to 2013b versions

Rename and modifying existing recipes to use 2013b
versions of time zone.

Signed-off-by: Joe Slater <jslater@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
python: fix on-target use of distutils/setuptools by removing references to buildpaths

Running 'python setup.py build' would fail due to the python Makefile having

CC=             i586-angstrom-linux-gcc  -m32    -march=core2 -msse3 -mtune=generic -mfpmath=sse --sysroot=/home/koen/v2012.12/build/tmp-angstrom_v2012_12-eglibc/sysroots/fri2
CXX=            i586-angstrom-linux-g++  -m32    -march=core2 -msse3 -mtune=generic -mfpmath=sse --sysroot=/home/koen/v2012.12/build/tmp-angstrom_v2012_12-eglibc/sysroots/fri2
'--with-libtool-sysroot=/home/koen/v2012.12/build/tmp-angstrom_v2012_12-eglibc/sysroots/fri2'

And more

Multiple users have reported this problem:

http://hipstercircuits.com/?p=499
http://www.gigamegablog.com/2012/09/09/beaglebone-coding-101-spi-output/

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
layer.conf: avoid unnecessary early expansion with :=

bitbake handles immediate expansions of LAYERDIR for us automatically.

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
perf: make PKGV match kernel version

Have perf grab and use the kernel version it's built from for PKGV,
rather than the default perf recipe version, so the final packages get
the kernel version instead of the default 1.0, which represents a
backwards value from the previous recipe.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>