[Midnightbsd-cvs] src: ata.4: Document new chipset support and mention we don't support

[laffer1 at midnightbsd.org]

Log Message:
-----------
Document new chipset support and mention we don't support NCQ

Modified Files:
--------------
    src/share/man/man4:
        ata.4 (r1.3 -> r1.4)
        (http://cvsweb.midnightbsd.org/src/share/man/man4/ata.4?r1=1.3&r2=1.4)