kinetis/Makefile.include: set RIOTBOOT_HDR_LEN to 0x200 for KW2XD
kinetis/Makefile.include: set RIOTBOOT_HDR_LEN to 0x200 for KW2XD

- Minimum required RIOBOOT_HDR_LEN or kW2xD is 0x200
  to respect vector table alignment

rfuentess/RIOT,smlng/RIOT,miri64/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,cladmi/RIOT,kYc0o/RIOT,kaspar030/RIOT,ant9000/RIOT,cladmi/RIOT,OTAkeys/RIOT,josephnoir/RIOT,mtausig/RIOT,josephnoir/RIOT,yogo1212/RIOT,mtausig/RIOT,x3ro/RIOT,yogo1212/RIOT,ant9000/RIOT,basilfx/RIOT,rfuentess/RIOT,kaspar030/RIOT,basilfx/RIOT,miri64/RIOT,OlegHahm/RIOT,smlng/RIOT,authmillenon/RIOT,kaspar030/RIOT,toonst/RIOT,authmillenon/RIOT,aeneby/RIOT,kYc0o/RIOT,basilfx/RIOT,kYc0o/RIOT,authmillenon/RIOT,jasonatran/RIOT,OTAkeys/RIOT,authmillenon/RIOT,yogo1212/RIOT,yogo1212/RIOT,OlegHahm/RIOT,x3ro/RIOT,RIOT-OS/RIOT,aeneby/RIOT,jasonatran/RIOT,OlegHahm/RIOT,josephnoir/RIOT,basilfx/RIOT,mtausig/RIOT,miri64/RIOT,OTAkeys/RIOT,miri64/RIOT,ant9000/RIOT,authmillenon/RIOT,smlng/RIOT,basilfx/RIOT,toonst/RIOT,x3ro/RIOT,aeneby/RIOT,kaspar030/RIOT,miri64/RIOT,jasonatran/RIOT,x3ro/RIOT,kaspar030/RIOT,x3ro/RIOT,ant9000/RIOT,authmillenon/RIOT,rfuentess/RIOT,josephnoir/RIOT,cladmi/RIOT,OlegHahm/RIOT,yogo1212/RIOT,jasonatran/RIOT,OTAkeys/RIOT,OTAkeys/RIOT,toonst/RIOT,kYc0o/RIOT,rfuentess/RIOT,RIOT-OS/RIOT,toonst/RIOT,aeneby/RIOT,smlng/RIOT,mtausig/RIOT,josephnoir/RIOT,cladmi/RIOT,rfuentess/RIOT,kYc0o/RIOT,aeneby/RIOT,toonst/RIOT,jasonatran/RIOT,ant9000/RIOT,RIOT-OS/RIOT,mtausig/RIOT,cladmi/RIOT,smlng/RIOT,yogo1212/RIOT,RIOT-OS/RIOT