n7.0.3
build: Generalize yasm/nasm-related variable names
x86: replace explicit REP_RETs with RETs
swresample/x86/audio_convert: Remove obsolete MMX functions
swresample/swresample: add a used channel layout option using the new API
swresample/x86/resample: Remove obsolete MMXEXT functions
swresample: Add arm&x86 clobber tests