service.openelec.settings: add upstream patches

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: update to xbmc-13.alpha-6edea14

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Mesa: update to Mesa-9.1.6

Signed-off-by: Stephan Raue <stephan@openelec.tv>
tools/mkpkg: update 'mkpkg_xbmc-gotham' script

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