Update librfxcodec #1121

Job	Run time
code formatting check	16s
min features with gcc	2m 28s
cppcheck	19m 38s
min features with g++	3m 14s
min features with clang	3m 13s
max features with gcc	3m 54s
max features with g++	2m 51s
max features with clang	3m 54s
max features with clang and AddressSanitized	3m 2s
max features with gcc and DEBUG	2m 31s
max features with gcc for 32-bit arch (legacy OS)	1m 49s
max features with g++ for 32-bit arch (legacy OS)	1m 51s
max features with clang for 32-bit arch (legacy OS)	1m 48s
	50m 29s

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