webos: Select udev provider based on DISTRO_FEATURES

[GF-1932] Backport systemd features from Yocto 1.4 into meta-webos-backports

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>
Change-Id: I3a318a27eb28783507fe56e9d1d0150df1bc4e29
Reviewed-on: https://g2g.palm.com/1841
Reviewed-by: Build Verification
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Tested-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Susan Montooth <susan.montooth@lge.com>