target/i386: emulate: Make sure fetch_instruction exist before calling it

Currently, this function is only available in MSHV. If a different accelerator
is used, and the code jumps to this section, a segfault will occur.
(I ran into this with HVF)

Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Link: https://lore.kernel.org/r/20251114082915.71884-2-phind.uet@gmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 file changed