feat: aarch64 port - Raspberry Pi 4/400 SD boot (SDHCI, ext2 root + first-boot grow), USB hubs, PCI INTx routing, SMP, DMA fences

kernel/src/Arch/x86_64/Apic/Interrupts.cpp

@@ -58,6 +58,14 @@ namespace Arch {
         Hal::IoApic::UnmaskIrq(Hal::IoApic::GetGsiForIrq(irq));
     }
 
+    bool PlatformLinesAreFixed() {
+        return true;
+    }
+
+    bool AssignPlatformLine(uint8_t, uint32_t, bool, bool) {
+        return false;
+    }
+
     bool ComposeMsi(uint8_t irq, MsiMessage& out) {
         // Physical destination mode, fixed delivery, edge triggered, to the
         // BSP (APIC ID 0 -- the destination field is left zero, as every