Merge r211153 from head:

Merge r211153 from head:

  Now that the uplcom(4) driver can autodetect the chipset type, sync
  the list of devices supported by uplcom(4) with the following sources:

  NetBSD  src/sys/dev/usb/uplcom.c 1.70
  OpenBSD src/sys/dev/usb/uplcom.c 1.52
  Linux   drivers/usb/serial/pl2303.h from kernel 2.6.35
  BeOS    usb_serial/driver.c 1.32

  Give several devices better descriptions, and rename
  PROLIFIC2 -> NETINDEX while here to match everybody else.

git-svn-id: svn://svn.freebsd.org/base/stable/8@213054 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f