Rollup merge of #113480 - Sword-Destiny:master, r=petrochenkov

add aarch64-unknown-teeos target

TEEOS is a mini os run in TrustZone, for trusted/security apps. The libc of TEEOS is a part of musl. The kernel of TEEOS is micro kernel.

This MR is to add a target for teeos.

MRs for libc and rust-std are in progress.

Compiler team MCP: [MCP](https://github.com/rust-lang/compiler-team/issues/652)

compiler/rustc_target/src/spec/mod.rs

@@ -83,6 +83,7 @@ mod openbsd_base;
 mod redox_base;
 mod solaris_base;
 mod solid_base;
+mod teeos_base;
 mod thumb_base;
 mod uefi_msvc_base;
 mod unikraft_linux_musl_base;
@@ -1494,6 +1495,8 @@ supported_targets! {
 
     ("x86_64-unknown-none", x86_64_unknown_none),
 
+    ("aarch64-unknown-teeos", aarch64_unknown_teeos),
+
     ("mips64-openwrt-linux-musl", mips64_openwrt_linux_musl),
 
     ("aarch64-unknown-nto-qnx710", aarch64_unknown_nto_qnx_710),