Assignment:
There is no reason for the NCCD constant to exist anymore.
The CCD driver already has cloning support but CCDs "softc"
structure is statically allocated for NCCD devices.
Change the CCD driver to dynamically allocate memory as needed,
the MD driver can be used as example as the overall morphology
of the two drivers are the same.
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Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
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