textproc/ripgrep: unbreak AVX=on on i386 after r454995

error[E0432]: unresolved import simd::x86::avx

--> cargo-crates/bytecount-0.3.2/src/lib.rs:49:16
 |

49 | use simd::x86::avx::{LowHigh128, u8x32};

|                ^^^ could not find `avx` in `x86`

https://github.com/rust-lang/rust/issues/56527