dhcpvendortax: update Playstation genus & species.

Make Playstation genus and species consistent with Wifi
taxonomy.

Change-Id: Icfaccfe8ab7389aa00dc6ceca4e6f957b107d03c
diff --git a/cmds/dhcpvendorlookup.gperf b/cmds/dhcpvendorlookup.gperf
index 884625a..e1e0c40 100644
--- a/cmds/dhcpvendorlookup.gperf
+++ b/cmds/dhcpvendorlookup.gperf
@@ -46,10 +46,10 @@
 MicroChip Network Stack| "Microchip board", "Microchip board"
 Motorola_AP| "Motorola Wifi AP", "Motorola Wifi AP"
 OptiIpPhone| "Siemens IP Phone", "Siemens IP Phone"
-PS3| "Sony Playstation", "PS3"
-PS4| "Sony Playstation", "PS4"
-PS Vita| "Sony Playstation", "PS-Vita"
-PS Vita TV| "Sony Playstation", "PS-Vita"
+PS3| "Playstation", "3"
+PS4| "Playstation", "4"
+PS Vita| "Playstation", "Vita"
+PS Vita TV| "Playstation", "Vita"
 Ruckus CPE| "Ruckus Wifi AP", "Ruckus Wifi AP"
 SAMSUNG Network Printer| "Samsung Printer", "Samsung Printer"
 SEC_ITP| "Samsung IP Phone", "Samsung IP Phone"