Fixed C++ compile error in codec_descriptor.h (Issue-44, Thanks Vali)
Fixed C++ compile error in codec_descriptor.h (Issue-44, Thanks Vali)

AaronZhangL/unimrcp-1,unispeech/unimrcp,AaronZhangL/unimrcp-1,unispeech/unimrcp,AaronZhangL/unimrcp-1,unispeech/unimrcp