AArch64 bare-metal targets: Build rust-std

This PR complements #68253

Author: andre-richter

src/ci/docker/dist-various-1/Dockerfile

@@ -115,6 +115,8 @@ ENV TARGETS=$TARGETS,armv5te-unknown-linux-gnueabi
 ENV TARGETS=$TARGETS,armv5te-unknown-linux-musleabi
 ENV TARGETS=$TARGETS,armv7-unknown-linux-musleabihf
 ENV TARGETS=$TARGETS,aarch64-unknown-linux-musl
+ENV TARGETS=$TARGETS,aarch64-unknown-none
+ENV TARGETS=$TARGETS,aarch64-unknown-none-softfloat
 ENV TARGETS=$TARGETS,sparc64-unknown-linux-gnu
 ENV TARGETS=$TARGETS,x86_64-unknown-redox
 ENV TARGETS=$TARGETS,thumbv6m-none-eabi
@@ -144,6 +146,8 @@ ENV CC_mipsel_unknown_linux_musl=mipsel-openwrt-linux-gcc \
     CC_mips64_unknown_linux_muslabi64=mips64-linux-gnuabi64-gcc \
     CC_sparc64_unknown_linux_gnu=sparc64-linux-gnu-gcc \
     CC_x86_64_unknown_redox=x86_64-unknown-redox-gcc \
+    CC_aarch64_unknown_none=aarch64-unknown-none \
+    CC_aarch64_unknown_none_softfloat=aarch64-unknown-none-softfloat \
     CC_thumbv7neon_unknown_linux_gnueabihf=arm-linux-gnueabihf-gcc \
     AR_thumbv7neon_unknown_linux_gnueabihf=arm-linux-gnueabihf-ar \
     CXX_thumbv7neon_unknown_linux_gnueabihf=arm-linux-gnueabihf-g++ \

src/tools/build-manifest/src/main.rs

@@ -54,6 +54,8 @@ static TARGETS: &[&str] = &[
     "aarch64-pc-windows-msvc",
     "aarch64-unknown-cloudabi",
     "aarch64-unknown-hermit",
+    "aarch64-unknown-none",
+    "aarch64-unknown-none-softfloat",
     "aarch64-unknown-linux-gnu",
     "aarch64-unknown-linux-musl",
     "aarch64-unknown-redox",