The SVF player now lives in electronics/libsvf behind a five-function
JTAG ops table, shared with the wifi_jtag_programmer Zephyr firmware.
src/modules/svf/ shrinks to the bscan_*-backed port (bs_svf_play),
which also keeps the FTDI stale-FIFO warm-up. Local checkout override:
-DFETCHCONTENT_SOURCE_DIR_SVF=<path>.
