xen: expose enable_IO_APIC for 32-bit

enable_IO_APIC() is defined for both 32- and 64-bit x86, so it should
be declared for both.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
1 file changed