xbmc: update to xbmc-6fc42b2

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/*/linux: add VT1720/24 [Envy24PT/HT] PCI Sound card support, this should fix #1418

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc-addon-xvdr: update to xbmc-addon-xvdr-0b3b2d4

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc-pvr-addons: update to xbmc-pvr-addons-96774c4

Signed-off-by: Stephan Raue <stephan@openelec.tv>