linux-vuduo2: Enable XFS module

Seems to have been forgotten, so added on request.
Remove obsolete orc recipe

OE-core now has orc, so the old recipe in meta-openpli isn't needed.
Add kernel-params back to image

Seemed to have been dropped somewhere. This packages tunes the kernel
for continuous writing applications. The alternative would be to patch
all the kernels, so this is simpler.
Merge branch 'master' of git://git.code.sf.net/p/openpli/openpli-oe-core
Merge