projects/RPi/patches: update RPi patch

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add PR4290

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add PR4296

Signed-off-by: Stephan Raue <stephan@openelec.tv>
xbmc: add upstream patch

Signed-off-by: Stephan Raue <stephan@openelec.tv>
appletv: add 'make image' support to buildsystem

This allows ‘PROJECT=ATV ARCH=i386 make image’ to output the .img files
needed to run OE from a USB (live mode) or install to the internal HDD.

Note: this is not complete and must be fixed

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'openelec-4.0' of https://github.com/OpenELEC/OpenELEC.tv into openelec-4.0

Conflicts:
	projects/RPi/patches/linux/linux-01-RPi_support-f7bef2e.patch