Change to the way the build directory is extracted

Use TMPDIR bitbake config variable to move the build directory into the
obmcdir "/tmp/openbmc" inside the container. When the copy out occurs it
will do it to the extraction directory which will default to the obmcext
git repository under the WORKSPACE directory. The link has been updated
to reflect this change. Before doing the run the extraction directory
will be created and chowned to the user UID and GID.

Change-Id: Ic99dbf0f0d1cdc613440a2c21b3cdc3385e9a386
Signed-off-by: Alanny Lopez <alanny.lopez@ibm.com>
3 files changed