systemd: Check for HAVE_POSIX_FALLOCATE

The check for the config variable is using the wrong define
resulting in the #else always being used.

Submitted upstream here:
    http://lists.openembedded.org/pipermail/openembedded-core/2014-April/092000.html

Signed-off-by: Drew Moseley <drew_moseley@mentor.com>
Merge pull request #156 from drewmoseley/systemd-fix

systemd: Check for HAVE_POSIX_FALLOCATE
mel: use gstreamer 0.10, not 1.0, for qtwebkit

Without this, all our builds including qt5 components resulted in building
both gstreamer versions, which caused sysroot and shlibs provider conflicts,
as well as slowing down our builds.

JIRA: SB-2713

Signed-off-by: Christopher Larson <kergoth@gmail.com>
Merge pull request #160 from kergoth/sb-2713

mel: use gstreamer 0.10, not 1.0, for qtwebkit