wolfcrypt: benchmark: use WC_USE_DEVID to benchmark ed25519 if defined #4639

Job	Run time
build library (--enable-cryptonly --enable-all-crypto --disable-examples --disable-benchmark --di...	55s
build library (--enable-smallstack --enable-intelasm --enable-cryptonly --enable-all-crypto --dis...	56s
build library (--enable-cryptonly --enable-all-crypto --disable-examples --disable-benchmark --di...	58s
build library (--enable-intelasm --enable-cryptonly --enable-all-crypto --disable-examples --disa...	1m 19s
build library (--enable-smallstack --disable-asm --enable-cryptonly --enable-all-crypto --disable...	54s
build library (--disable-asm --enable-cryptonly --enable-all-crypto --disable-examples --disable-...	1m 0s
	6m 2s

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