target/i386: Save and restore pc_save before tcg_remove_ops_after

target/i386: Save and restore pc_save before tcg_remove_ops_after

Restore pc_save while undoing any state change that may have
happened while decoding the instruction.  Leave a TODO about
removing all of that when the table-based decoder is complete.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221016222303.288551-1-richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>