Defines starting with `n' in bsd/dev/ppc/drvPPCATA

• NIDE_PCAT bsd/dev/ppc/drvPPCATA/ata_extern.h:62
• NO_ATAPI_RUNTIME_MEMORY_ALLOCATION bsd/dev/ppc/drvPPCATA/AtapiCnt.h:45
• NO_WORK_AVAILABLE bsd/dev/ppc/drvPPCATA/AtapiCntInternal.h:42