1. Renames NCT constant to NCTAU. This will help while MFC to 4 branch. 2. Fix compilation and panic while system boot problem after makedev was changed to unde2dev.
1. Renames NCT constant to NCTAU. This will help while MFC to 4 branch.
2. Fix compilation and panic while system boot problem after makedev
was changed to unde2dev.

Approved by: imp (mentor)

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