sema-svc: detect a decoded release by count, not by the (unchanging) VA

The pump decided "this push carried a release" by comparing the last
decoded release VA before/after svc_decode_stream. Consecutive pushes on a
channel release to the SAME tracking-semaphore VA (UVM's tracker pattern),
so every push after the first read as release-less: the entry was held for
the full CE grace window (observed: exactly one push consumed per 8 s,
gating the whole runtime init; the release itself had already been applied
by the decode, only the pump's bookkeeping stalled).

svc_rel_count now increments on every decoded release (host sem block,
REPORT_SEM block, CE launch-DMA release) and the pump compares counts at
all three sites (initial decode, rescue re-route, rescued-page retry).

0 files changed, 0 insertions, 0 deletions