[xorg-x11-drivers/f18] (5 commits) ...Hide ast/cirrus/mga in RHEL

[Adam Jackson]

Summary of changes:

  c3134dc... Only build vesa on arches where xserver builds VBE support (*)
  c5cbc2e... arm has omap and armsoc drivers (*)
  2586f72... Superstition bump to 7.7 (*)
  56a05f6... Hide ast/cirrus/mga in RHEL (*)
  4f191aa... Hide ast/cirrus/mga in RHEL

(*) This commit already existed in another branch; no separate mail sent