PCKDB: Fix PS/2 Mouse support.

Change-Id: I2240b47ca47a3db7268b47e9e5881d8200c68531
PCI driver cleanup

 - Moved to KNF
 - Whitespace cleanup
 - Removed useless static functions prototypes
 - Renamed some file private functions by prepending '__'
 - Renamed some server-specific function by prepending '_'
 - Fixed compilation warning for WARNS= 3

Change-Id: Ie44d35839177d5ee0630cdf576660c852452ab80