MACHINE_DRI_MODULES is no longer used in the mesa recipe and the dri2 driver
depends on dri2.h which depends on the xserver being built for dri2.
Since the mesa package now splits up the dri drivers into seperate packages
this adds mesa-dri-driver-i915 to XSERVER
We want to have a more generic platform definition.
The netbook machine one currently supports the eee901 and the aspire one.
We also moved the machine and netbook image definitions to meta-moblin.
Richard Purdie
Samuel Ortiz
Robert Bragg
Peng Li