ACPI now correctly only does the power on resume event on power on, not software-initiated hard resets, fixes #3794.

src/acpi.c

@@ -1653,9 +1653,6 @@ acpi_reset(void *priv)
             dev->regs.gpi_val |= 0x00000004;
     }
 
-    /* Power on always generates a resume event. */
-    dev->regs.pmsts |= 0x8100;
-
     acpi_rtc_status = 0;
 
     acpi_update_irq(dev);
@@ -1762,6 +1759,9 @@ acpi_init(const device_t *info)
 
     acpi_reset(dev);
 
+    /* Power on always generates a resume event. */
+    dev->regs.pmsts |= 0x8100;
+
     acpi_enabled = 1;
     return dev;
 }