tvheadend: never load userspace hdhr driver

tvheadend has native hdhr support
projects/*/linux: build RTSX USB and PCIe cardreader drivers statically

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/RPi/patches/kodi: use helix backport patch

Signed-off-by: Stephan Raue <stephan@openelec.tv>
kodi: add patch to disable unsupported powerfunctions for iMX6 builds

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