Log Message:
Update to 1.7.3:

Adam Jackson (2):
      Remove useless loader symbol lists.
      siliconmotion 1.7.2

Alan Coopersmith (1):
      Fill in COPYING file, add SubmittingPatches URL to README

Francisco Jerez (5):
      Probe the amount of installed memory by trial and error on SM712.
      Fail gracefully when the specified virtual screen doesn't fit in RAM.
      Widen the pixel clock readjust interval for SM712.
      Program MCLK/MXCLK on startup for a secondary SM502.
      Fix EXA rotation for SM502 at 32bpp (bug 22432).

Dave Airlie (4):
      siliconmotion: update for resources/RAC API removal
      siliconmotion: change to using ABI version check
      update for 1.7.3
      fix build after headers moved

Peter Hutterer (1):
      Update to xextproto 7.1 support.