pvr: add handling for retry error in pvr_srv_rgx_kick_compute2()

Speculative fix following similar fixes to pvr_srv_rgx_kick_render2() and
pvr_srv_rgx_submit_transfer2().

Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31679>
1 file changed