Log Message:
Update to 1.6.3:

mga release to fix XAA loading and running.

Alan Coopersmith (1):
      Remove mga_esc.c vestigal stub

Andy MacLean (1):
      Unbreak dual head (xinerama)

Dave Airlie (2):
      mga: fix XAA runtime
      mga: bump release to 1.6.3

Egbert Eich (3):
      Disable Linear Expansion on BE
      Restructure code to make it more readable
      Disable HW cursor by default on G200 server chips

Julien Cristau (1):
      Restrict kernel driver matching to g200 server chips

Tormod Volden (2):
      Fix dual head crash without XAA
      mga: Use exaGetPixmapFirstPixel() instead of devPrivate.ptr