extract s390x vector and friends to their own rust feature

Author: folkertdev

core/src/lib.rs

@@ -204,6 +204,7 @@
 #![feature(riscv_target_feature)]
 #![feature(rtm_target_feature)]
 #![feature(s390x_target_feature)]
+#![feature(s390x_target_feature_vector)]
 #![feature(wasm_target_feature)]
 #![feature(x86_amx_intrinsics)]
 // tidy-alphabetical-end

stdarch/crates/core_arch/src/lib.rs

@@ -22,7 +22,7 @@
     arm_target_feature,
     mips_target_feature,
     powerpc_target_feature,
-    s390x_target_feature,
+    s390x_target_feature_vector,
     loongarch_target_feature,
     wasm_target_feature,
     abi_unadjusted,