Creates x11 PACKAGECONFIGs

* Latencytop and sysprof is bringing graphical recipes in our console image.
  We dont need graphical view of latencytop at this time even for sato image
  so removing it through PACKAGECONFIG. Created x11 PACKAGECONFIG in the
  recipes bbappend and set the PACKAGECONFIG to "" in mel.conf.

Signed-off-by: Noor Ahsan <noor_ahsan@mentor.com>