projects/ATV: add xorg defaults for Component/HDMI

ensures Xorg selects 1080p for HDMI and 720p for Component when available (Component 1080i can be selected within XBMC if the TV can handle it, not all can)
linux: support for TechniSat SkyStar S2 card with CX24120-13Z frontend this closes #2100, discussion http://openelec.tv/forum/83-dvb-s-s2-support/63061-technisat-skystar-s2-pci-not-supported#66807 patch from Jannis Achstetter http://patchwork.linuxtv.org/patch/10575/ originally made by Sergey Tyurin
tvheadend: update to tvheadend-3.3.511
Revert "binutils: update to binutils-2.23.2"

This reverts commit 2c4bfc46969a3102956e6a7a1a83ffd439421da2.

This fixes compiling issues with package 'gmp' for 'arm'