Kernel: Require lock rank for Spinlock construction

All users which relied on the default constructor use a None lock rank
for now. This will make it easier to in the future remove LockRank and
actually annotate the ranks by searching for None.

Kernel/Memory/MemoryManager.h

@@ -89,7 +89,7 @@ struct PhysicalMemoryRange {
 struct MemoryManagerData {
     static ProcessorSpecificDataID processor_specific_data_id() { return ProcessorSpecificDataID::MemoryManager; }
 
-    Spinlock m_quickmap_in_use;
+    Spinlock m_quickmap_in_use { LockRank::None };
     u32 m_quickmap_prev_flags;
 
     PhysicalAddress m_last_quickmap_pd;