gnu-config: Update for newer gnu-config in oe-core

* Backport the proper patch (with stripped Changelog entry)

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
util-linux: Updated for newer util-linux in oe-core

* Updated patch, added upstream status

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
gettext: Remove non-required override

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
linux-xlnx: Remove forced IMAGETYPE setting

* This should not be set in the kernel recipe, instead it should be in any
  associated machine configuration.

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>