CODEOWNERS: update for new pco compiler tree

Signed-off-by: Simon Perretta <[email protected]>
Acked-by: Frank Binns <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32258>

Author: simon-perretta-img

CODEOWNERS

@@ -127,6 +127,7 @@ gitlab-ci*.yml @eric
 /include/drm-uapi/pvr_drm.h @aashishc @frankbinns @luigi.santivetti
 /src/imagination/ @aashishc @frankbinns @luigi.santivetti
 /src/imagination/rogue/ @simon-perretta-img
+/src/imagination/pco/ @simon-perretta-img
 
 # Intel
 /include/drm-uapi/i915_drm.h @kwg @llandwerlin @gfxstrand @idr