Auto merge of rust-lang#104361 - vladimir-ea:watchos_fix_linking, r=oli-obk

[watchos] Dynamic linking is not allowed for watchos targets

Dynamic linking of all apple targets was (re-) enabled in PR rust-lang#100636. However, dynamic linking is not allowed on WatchOS so this broke the build of standard library for WatchOS.

This change disables dynamic linking for WatchOS non-simulator targets.

Author: bors