Initialize ACPI driver in manager.

The previous commit said that this is being done, but it didn't have
the changes in the driver manager. Those are here.

i386/legacy-boot/src-asm/drivers/manager.asm

@@ -9,12 +9,12 @@ DRIVER_SLOT_COUNT       equ 32
 ; the end is forced by the main initialization function.
 driver_init_functions:
     dd          initialize_pci_driver
+    dd          initialize_acpi_driver
     ; Ending Entry
     dd          0
 
-; [Furthest from EBP]
-;   -- No Arguments --
-; [Nearest to EBP]
+; Arguments:
+;   -- None --
 setup_drivers:
     push        dword                   esi
     sub         esp,                    64
@@ -73,3 +73,4 @@ setup_drivers:
     ret
 
 %include "drivers/pci/driver.asm"
+%include "drivers/acpi/driver.asm"