x86emul: avoid assembler warning about .type not taking effect in test harness

x86emul: avoid assembler warning about .type not taking effect in test harness

gcc re-orders top level blocks by default when optimizing. This
re-ordering results in all our .type directives to get emitted to the
assembly file first, followed by gcc's. The assembler warns about
attempts to change the type of a symbol when it was already set (and
when there's no intervening setting to "notype").

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>