[Midnightbsd-cvs] src: UPDATING: mention usb changes and removal of pcc with a brief

[laffer1 at midnightbsd.org]

Log Message:
-----------
mention usb changes and removal of pcc with a brief explanation.

Modified Files:
--------------
    src:
        UPDATING (r1.63 -> r1.64)
        (http://cvsweb.midnightbsd.org/src/UPDATING?r1=1.63&r2=1.64)