Do not include hw/hw.h if it is not necessary

hw.h only contains the protoype of one function nowadays, hw_error(),
so all files that do not use this function anymore also do not need
to include this header anymore.

Message-Id: <20230216142915.304481-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
5 files changed