LaserJet 8150 has wrong ImageableArea and FileVersion PPD-VERSION-STRING

[Jiri Popelka]

The PPD files for LaserJet 8150 and probably also LaserJet 9000
shipped with hplip-3.10.5 (prnt/ps/ directory) contain wrong ImageableArea values.

Try e.g. this:
cd hplip-3.10.5/prnt/ps/
gunzip *
grep "*ImageableArea Letter/Letter:" *
and you can see that most PPD files have values approx. "12 12 600 780"
only
hp-laserjet_8150_mfp-ps.ppd
hp-laserjet_9000_mfp-ps.ppd
hp-laserjet_9000_series-ps.ppd
have different values.

PPD files for 8150/9000 generated from hpcups.drv look good.

Attached is patch that fixes this for original reporter, see
https://bugzilla.redhat.com/show_bug.cgi?id=596298

Also all PPD files from prnt/ps/ directory have
*FileVersion: "PPD-VERSION-STRING"
so there's a "PPD-VERSION-STRING" on the test printout page instead of printing an actual Driver Version.
This is not a big deal so I'm writing it as a note here (not filling separate bug report).