Fix some build errors.

Core/AVIDump.cpp

@@ -8,6 +8,7 @@
 #endif
 
 #include <string>
+#include <cstdint>
 #include <sstream>
 
 extern "C" {

Core/MIPS/ARM64/Arm64RegCache.cpp

@@ -687,7 +687,7 @@ void Arm64RegCache::SetImm(MIPSGPReg r, u64 immVal) {
 		return;
 	}
 	if (r == MIPS_REG_ZERO && immVal != 0) {
-		ERROR_LOG_REPORT(JIT, "Trying to set immediate %08x to r0 at %08x", immVal, compilerPC_);
+		ERROR_LOG_REPORT(JIT, "Trying to set immediate %08x to r0 at %08x", (u32)immVal, compilerPC_);
 		return;
 	}