Rollup merge of rust-lang#58440 - gnzlbg:v6, r=japaric

Whitelist the ARM v6 target-feature

Author: kennytm

src/librustc_codegen_llvm/llvm_util.rs

@@ -100,9 +100,11 @@ const ARM_WHITELIST: &[(&str, Option<&str>)] = &[
     ("dsp", Some("arm_target_feature")),
     ("neon", Some("arm_target_feature")),
     ("v5te", Some("arm_target_feature")),
+    ("v6", Some("arm_target_feature")),
     ("v6k", Some("arm_target_feature")),
     ("v6t2", Some("arm_target_feature")),
     ("v7", Some("arm_target_feature")),
+    ("v8", Some("arm_target_feature")),
     ("vfp2", Some("arm_target_feature")),
     ("vfp3", Some("arm_target_feature")),
     ("vfp4", Some("arm_target_feature")),