Added undocumented options AAC_DEBUG, ACD_DEBUG, ACPI_MAX_THREADS,

Added undocumented options AAC_DEBUG, ACD_DEBUG, ACPI_MAX_THREADS,
ACPI_NO_SEMAPHORES, ASR_MEASURE_PERFORMANCE, AST_DEBUG, ATAPI_DEBUG,
ATA_DEBUG, BKTR_ALLOC_PAGES, BROOKTREE_ALLOC_PAGES, CAPABILITIES,
COMPAT_SUNOS, CV_DEBUG, MAXFILES, METEOR_TEST_VIDEO, NDEVFSINO,
NDEVFSOVERFLOW, NETGRAPH_BRIDGE, NETSMB, NETSMBCRYPTO, PFIL_HOOKS,
SIMOS, SMBFS, VESA_DEBUG, VGA_DEBUG.

Start using #! to comment out negative options and ## to comment out
broken options.

atapi-all.c:
Fixed rotted bits that were hiding under ATAPI_DEBUG.

atapi-cd.c:
#include "opt_ata.h" so that ACD_DEBUG is actually visible.

ata/atapi-tape.c
#include "opt_ata.h" so that AST_DEBUG is actually visible.