[Readme] add WCL into platform list

WCL(Wildcat lake) has similar media feature as PTL
so add WCL as part of PTLx

Signed-off-by: Carl.Zhang <carl.zhang@intel.com>

Author: XinfengZhang

README.md

@@ -85,7 +85,7 @@ export LIBVA_DRIVER_NAME=iHD
 - MTLx (MTL: Meteor Lake, ARL-S/H: Arrow Lake)
 - LNL (Lunar Lake)
 - BMG (Battlemage)
-- PTL (Pather Lake)
+- PTLx (PTL: Panther Lake, WCL: Wildcat Lake)
 - NVL (Nova Lake)
 
 
@@ -107,7 +107,7 @@ If you are looking forward to have a big table to share media component features
 ### Decoding/Encoding Features
 
 
-| CODEC | Build Types |NVL |PTL |BMG |LNL | MTLx | DG2/ATSM | DG1/SG1 | TGLx | EHL/JSL | ICL | KBLx | BXTx | SKL | BDW |
+| CODEC | Build Types |NVL |PTLx |BMG |LNL | MTLx | DG2/ATSM | DG1/SG1 | TGLx | EHL/JSL | ICL | KBLx | BXTx | SKL | BDW |
 |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | AVC | <u>Full-Feature</u><br><i>Free-Kernel</i> | <u>D/E</u><br><i>D/E<i> | <u>D/E</u><br><i>D/E<i> | <u>D/E</u><br><i>D/E<i> | <u>D/E</u><br><i>D/E<i> | <u>D/E</u><br><i>D/E<i> | <u>D/E</u><br><i>D/E<i> | <u>D/E/Es</u><br><i>D/E<i> | <u>D/E/Es</u><br><i>D/E<i> | <u>D/E</u><br><i>D/E<i> | <u>D/E/Es</u><br><i>D/E<i> | <u>D/E/Es</u><br><i>D/E<i> | <u>D/E/Es</u><br><i>D/E<i> | <u>D/E/Es</u><br><i>D/E<i> | <u>D/Es</u><br><i>D<i> |
 | MPEG-2 | <u>Full-Feature</u><br><i>Free-Kernel</i> | <u>&nbsp;</u><br><i>&nbsp;<i> | <u>D</u><br><i>D<i> | <u>D</u><br><i>D<i> | <u>D</u><br><i>D<i> | <u>D</u><br><i>D<i> | <u>D</u><br><i>D<i> | <u>D/Es</u><br><i>D<i> | <u>D/Es</u><br><i>D<i> | <u>D</u><br><i>D<i> | <u>D/Es</u><br><i>D<i> | <u>D/Es</u><br><i>D<i> | <u>D</u><br><i>D<i> | <u>D/Es</u><br><i>D<i> | <u>D/Es</u><br><i>D<i> |