thermosphere: add actual breakpoint code

thermosphere/src/arm.h

@@ -14,5 +14,5 @@ void invalidate_icache_all(void);
 void set_memory_registers_enable_mmu(uintptr_t ttbr0, u64 tcr, u64 mair);
 void set_memory_registers_enable_stage2(uintptr_t vttbr, u64 vtcr);
 
-void initBreakpointRegs(size_t num);
+void reloadBreakpointRegs(size_t num);
 void initWatchpointRegs(size_t num);