Does not build on arm-unknown-linux-gnueabi{,hf}

[whitequark]

error[E0432]: unresolved import `arm::neon::common`. Could not find `neon` in `arm`
  --> /home/whitequark/.cargo/registry/src/github.com-1ecc6299db9ec823/simd-0.1.1/src/common.rs:19:5
   |
19 | use arm::neon::common;
   |     ^^^^^^^^^^^^^^^^^