MAINTAINERS: Updates to NXP maintainer areas

A few updates:
- Add all orphaned nxp files to the areas
- Make new NXP wireless area to house all wireless related things for
  now like wifi, bluetooth, ieee802154
- Add axelnxp to wireless area
- Add kw41z ieee802154 to wireless area (previously orphaned)
- Add kw24 usb board to NXP USB area (previously orphaned)
- Add hexiwear board to NXP MCU area (previously orphaned)
- Add common NXP files previously orphaned to NXP platform area
- Create new robotic product area and move all robotic boards to that
  area, move bperseghetti and PetervdPerk-NXP to this area.
- Add rddrone_fmuk66 to robotic area (previously orphaned)
- Add layerscape board to NXP MPU area (previously orphaned)
- Remove yvanderv (inactive collaborator)

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>