Rollup merge of #146858 - Gelbpunkt:mips64el-musl-dynamic, r=jieyouxu

Make mips64el-unknown-linux-muslabi64 link dynamically

I missed this target when I changed all the other tier 3 targets in rust-lang/rust#144410. Only realized that this one was still statically linked when I looked at the list of targets in the test later (rust-lang/rust#146588).

since those two PRs were reviewed by you:
r? ````@jieyouxu````

Author: Zalathar