Re-add #![feature(target_feature_11)]

taiki-e · taiki-e · commit b011cc61d68b · 2023-03-03T12:09:02.000+09:00
Stabilization has been reverted in rust-lang/rust#108654 (comment)
diff --git a/crates/core_arch/src/lib.rs b/crates/core_arch/src/lib.rs
@@ -30,6 +30,7 @@
     allow_internal_unstable,
     decl_macro,
     asm_const,
+    target_feature_11,
     inline_const,
     generic_arg_infer
 )]
