ACPI suspend type field is 3 bits long

According to ACPI spec table 4-13 suspend type field should be 3 bits
long.

(Gleb Natapov)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5027 c046a42c-6fe2-441c-8c8c-71466251a162

hw/acpi.c

@@ -145,7 +145,7 @@ static void pm_ioport_writew(void *opaque, uint32_t addr, uint32_t val)
             s->pmcntrl = val & ~(SUS_EN);
             if (val & SUS_EN) {
                 /* change suspend type */
-                sus_typ = (val >> 10) & 3;
+                sus_typ = (val >> 10) & 7;
                 switch(sus_typ) {
                 case 0: /* soft power off */
                     qemu_system_shutdown_request();