APIC: Enable APIC and start APs

Author: https://github.com/tomuta
Commit: 00a7c48d6e
Pull-request: https://github.com/SerenityOS/serenity/pull/668
Reviewed-by: https://github.com/awesomekling

Kernel/VM/MemoryManager.h

@@ -69,7 +69,7 @@ public:
 
     void remap_region(PageDirectory&, Region&);
 
-    void map_for_kernel(VirtualAddress, PhysicalAddress);
+    void map_for_kernel(VirtualAddress, PhysicalAddress, bool cache_disabled = false);
 
     OwnPtr<Region> allocate_kernel_region(size_t, const StringView& name, bool user_accessible = false, bool should_commit = true);
     OwnPtr<Region> allocate_user_accessible_kernel_region(size_t, const StringView& name);