Closes the H.264 qpel substitution. Extends 0007 (which routed only
mc20 put_) to ALL 15 useful positions in BOTH the put_ and avg_
tables, skipping mc00 (integer copy / pointer-only fast path).
29 substitutions total: 14 new put_ + 15 avg_. Each wraps a single
daedalus_recipe_dispatch_h264_qpel_{avg_,}mcXY call (the dispatches
landed in daedalus-fourier PRs #15-#20). Collapsed via a single
DEFINE_QPEL_WRAPPER macro on the libavcodec shim side so the diff
is uniform.
All recipe-table entries route AUTO to CPU NEON — no QPU shaders
for any qpel position other than mc20 yet. Plumbing-only
NEON-to-NEON via the daedalus recipe layer; bit-exact against
the in-tree ff_*_h264_qpel8_*_neon path (each daedalus dispatch is
already bit-exact-gated by the corresponding fourier PR's test).
16x16 qpel tables ([0][...]) stay on the in-tree NEON. daedalus
only exposes 8x8 today; 16x16 substitution can land once fourier
provides those variants.
Verified the patch applies cleanly on top of 0001-0011 against the
pinned upstream commit b57fbbe5 on hertz.
