Do not disable 8259 irq 2 (cascade) at boot

Also fix incorrect shift for set/unset
Remove bochs brk
Add inw, outw
Add device lookup to pci interface

Also add BARXX lookups
Add MINDRVR sources (ata/atapi driver)

http://ata-atapi.com/mindrvr.html
Adapt MINDRVR ata driver sources

bugfixes for 64-bit
prefix configuration with MINDRVR
make i/o funcs overridable
Raise kernel size to 192K
Fix width of pci header in struct

causing bug when reading header type
Fix bochs image for new kernel size
More mindrvr fixes