Rollup merge of #133386 - wesleywiser:update_musl_base_crt_default, r…

…=jieyouxu

Update linux_musl base to dynamically link the crt by default

However, don't change the behavior of any existing targets at this time. For targets that used the old default, explicitly set `crt_static_default = true`.

This makes it easier for new targets to use the correct defaults while leaving the changing of individual targets to future PRs.

Related to rust-lang/compiler-team#422