n4.3.9
mips: Fixing HAVE_MIPSFPU dependencies
avutil/mips: header asmdefs.h add some PTR_ macros for loongson
mips: add support for R6
avcodec/mips: msa optimizations for vc1dsp
avutil/mips/intreadwrite: build fix for mips64r6 (instruction 'lwl' not supported)
all: Make header guard names consistent
avutil/mips: Avoid instruction exception caused by gssqc1/gslqc1.