google/patches/idpf: Fix 60s delay after function reset

BUG=b/565798755
TEST=presubmit, compile locally
RELEASE_NOTE=Fixed a 60 second outage after an idpf function reset on IPU E2100 caused by misreading PFGEN_RSTAT.

cos-patch: bug
Change-Id: I18afaf2f785bafae841a02d49cce41c3b8488114
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/234206
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Brian Vazquez <brianvv@google.com>
Reviewed-by: Miri Amarilio <mirilio@google.com>
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/235566