testing/b3sum: disable on armhf

'vaddq_u32': target specific option mismatch

testing/b3sum/APKBUILD

@@ -5,7 +5,7 @@ pkgver=0.1.1
 pkgrel=0
 pkgdesc="Command line implementation of the BLAKE3 hash function"
 url="https://blake3.io"
-arch="all !s390x"
+arch="all !s390x !armhf" # armhf: 'vaddq_u32': target specific option mismatch
 license="CC0-1.0 OR Apache-2.0"
 makedepends="cargo"
 source="b3sum-$pkgver.tar.gz::https://crates.io/api/v1/crates/b3sum/$pkgver/download"