nettle: dont build parallel
libva: Bump libva and libva-intel-driver
xbmc: Add VPP deinterlacing for intel vaapi
mesa: fix rc6 hang on snb
Revert "projects/*/linux: disable rc6 to avoid crashes on all projects using intel GPU drivers"

This reverts commit c6ea2a2882526c2da273cbffefedb5de0ceedc0c not needed anymore
libva: update to 0a5cfdab47c788569feb0a3e4293906687523f88 (driver) 4f4d0348ece641c419ae2bb4ee5c283742aa2b1b (libva)