Add cmdlinepart and default static partition table support for ARM Integrator

[George G. Davis]

Greetings,

The attached patch adds cmdlinepart and default static partition table support
to integrator-flash. I've tested this on an ARM Integrator/AP with CM920T
core module. The patch is against recent MTD CVS checkout +/- 1 day. I'ld like
to get this committed to the MTD CVS repository. TIA!

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Regards,
George