include/system/hvf: missing vaddr include

include/system/hvf: missing vaddr include

On MacOS x86_64:
In file included from ../target/i386/hvf/x86_task.c:13:
/Users/runner/work/qemu/qemu/include/system/hvf.h:42:5: error: unknown type name 'vaddr'
    vaddr pc;
    ^
/Users/runner/work/qemu/qemu/include/system/hvf.h:43:5: error: unknown type name 'vaddr'
    vaddr saved_insn;
    ^
/Users/runner/work/qemu/qemu/include/system/hvf.h:45:5: error: type name requires a specifier or qualifier
    QTAILQ_ENTRY(hvf_sw_breakpoint) entry;
    ^
/Users/runner/work/qemu/qemu/include/system/hvf.h:45:18: error: a parameter list without types is only allowed in a function definition
    QTAILQ_ENTRY(hvf_sw_breakpoint) entry;
                 ^
/Users/runner/work/qemu/qemu/include/system/hvf.h:45:36: error: expected ';' at end of declaration list
    QTAILQ_ENTRY(hvf_sw_breakpoint) entry;

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-id: 20250512180502.2395029-3-pierrick.bouvier@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>