fix(mgb): fix megtee build errors

GitOrigin-RevId: b351dd39943ef26f25e3e95f89d14f8005c49ab4

dnn/src/arm_common/conv_bias/int8/direct_kernels/dot_direct_nchw_large.h

 #pragma once
+#include <cstddef>
 #include "megdnn/arch.h"
 #if MGB_ENABLE_DOT
 
@@ -21,4 +22,4 @@ void megdnn_dot_nchw_large_chanwise_direct_conv_11x11s2_oh4_ow16(
         const int8_t* src, const int8_t* weight, int32_t bias, int8_t* dst, size_t oh,
         size_t ow, size_t OH, size_t OW, size_t pad_iw, const float scale,
         int8_t relu_val);
-#endif
+#endif
\ No newline at end of file

src/core/include/megbrain/common.h

@@ -9,6 +9,7 @@
 #include <mutex>
 #include <string>
 
+#include <cerrno>
 #include <cstdarg>
 #include <cstddef>
 #include <cstdint>