logo: remove fng system logo

This is a part of the fix for issue YT-162 "FNG System Logo: Replace in kernel logo with runtime logo or similar"

This MR completely removes a FNGS logo from Linux kernel. An alternative option to removal is to turn these options off (set to "N" in config), but we can't find why and when this functionality may be needed.

Other MRs:

• KUK kernel MR: linux-imx-kuk!533 (merged)
• meta-seconorth-distro MR: seco-ne/yocto/layers/meta-seconorth-distro!788 (merged)
• meta-seconorth-machine MR: seco-ne/yocto/layers/meta-seconorth-machine!578 (merged)