[compiler-rt] [compiler-rt][Mips] Fix stat size check on mips64 musl (PR #143301)

[Jens Reidel via llvm-commits]

Gelbpunkt wrote:

FYI I figured out why this is the case: musl's nlink_t is a u32 instead of a u64, which changes the size from 216 bytes to 208: https://git.musl-libc.org/cgit/musl/tree/arch/mips64/bits/alltypes.h.in#n22

So this is definitely correct :)

https://github.com/llvm/llvm-project/pull/143301