Add a package to support IR remote configuration utility for Amlogic-based devices
u-boot: Do not build u-boot if $UBOOT_VERSION is not specified

This is especially useful for WeTek Play, which uses U-Boot bootloader,
but currently doesn't build it as a part of OpenELEC.
IMX: Remove special handling via powermanager (user wish)
Merge pull request #3713 from fritsch/imx-power2

IMX: Remove special handling via powermanager (user wish)
Merge pull request #3710 from codesnake/amremote_support

Add a package to support IR remote configuration utility for Amlogic-based devices
Merge pull request #3711 from codesnake/bypass_uboot

u-boot: Do not build u-boot if $UBOOT_VERSION is not specified