Bool type arithmetic operations

[QiAnXinCodeSafe]

Hi all,
This is Qianxin CodeSafe Team, we found a suspicious issue, at

openh264/codec/decoder/core/src/deblocking.cpp

Line 685 in 3668daf

return (bLeftFlag << LEFT_FLAG_BIT) | (bTopFlag << TOP_FLAG_BIT);

Performing arithmetic operations on Boolean values may operate differently than performing operations on integer values, which can lead to unexpected results