message: [Scripts] Fix location for aarch64 outputs in gitian-build.sh
  Even though aarch64 builds are technically linux, we want the sigs and
  output to be in it's own path.
diff: @@ -312,7 +312,7 @@ then
  echo "Compiling ${VERSION} AArch64"
  echo ""
  ./bin/gbuild -j ${proc} -m ${mem} --commit pivx=${COMMIT} --url pivx=${url} ../pivx/contrib/gitian-descriptors/gitian-aarch64.yml
  - ./bin/gsign -p $signProg --signer $SIGNER --release ${VERSION}-linux --destination ../gitian.sigs/ ../pivx/contrib/gitian-descriptors/gitian-aarch64.yml
  + ./bin/gsign -p $signProg --signer $SIGNER --release ${VERSION}-aarch64 --destination ../gitian.sigs/ ../pivx/contrib/gitian-descriptors/gitian-aarch64.yml
  mv build/out/pivx-*.tar.gz build/out/src/pivx-*.tar.gz ../pivx-binaries/${VERSION}
  popd
  @@ -355,7 +355,7 @@ then
  echo ""
  echo "Verifying v${VERSION} AArch64"
  echo ""
  - ./bin/gverify -v -d ../gitian.sigs/ -r ${VERSION}-linux ../pivx/contrib/gitian-descriptors/gitian-aarch64.yml
  + ./bin/gverify -v -d ../gitian.sigs/ -r ${VERSION}-aarch64 ../pivx/contrib/gitian-descriptors/gitian-aarch64.yml
  # Signed Windows
  echo ""
  echo "Verifying v${VERSION} Signed Windows"
  