Add QNX SDP 7.1.0 aarch64 toolchain archive (GCC 8.3.0) for Bazel hermetic builds.

QNX SDP 7.1.0 aarch64 Toolchain Support

This is the first release of qorix-group/bazel_cpp_toolchains, adding support for
the QNX Software Development Platform 7.1.0 targeting aarch64.

Usage in MODULE.bazel

gcc.sdp(
    name = "score_qcc_aarch64_toolchain_pkg",
    sdp_version = "7.1.0",
    use_default_package = True,
)