target/arm: Remove TYPE_AARCH64_CPU

The TYPE_AARCH64_CPU class is an abstract type that is the
parent of all the AArch64 CPUs. It now has no special
behaviour of its own, so we can eliminate it and make
the AArch64 CPUs directly inherit from TYPE_ARM_CPU.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 files changed