RVV: InstanceNorm with fp16s(a) support

[thelastlin]

RVV: InstanceNorm, fp32/fp16, w/ elempack support

[codecov-commenter]

Codecov Report

Merging #4078 (d80731a) into master (e7eadca) will decrease coverage by 0.65%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #4078      +/-   ##
==========================================
- Coverage   94.44%   93.79%   -0.66%     
==========================================
  Files         750      698      -52     
  Lines      179375   161842   -17533     
==========================================
- Hits       169417   151797   -17620     
- Misses       9958    10045      +87     

Impacted Files	Coverage Δ
src/layer/riscv/instancenorm_riscv.cpp	100.00% <100.00%> (ø)
src/layer/riscv/flatten_riscv.cpp	49.55% <0.00%> (-45.25%)	:arrow_down:
src/layer/riscv/crop_riscv.cpp	78.57% <0.00%> (-18.69%)	:arrow_down:
src/layer/riscv/packing_riscv.cpp	71.49% <0.00%> (-18.10%)	:arrow_down:
src/layer/riscv/convolution_riscv.cpp	82.05% <0.00%> (-16.91%)	:arrow_down:
src/layer/riscv/padding_riscv.cpp	83.09% <0.00%> (-11.37%)	:arrow_down:
src/layer/riscv/convolutiondepthwise_riscv.cpp	89.23% <0.00%> (-7.99%)	:arrow_down:
src/layer/riscv/innerproduct_riscv.cpp	93.38% <0.00%> (-6.23%)	:arrow_down:
src/layer/riscv/deconvolutiondepthwise_riscv.cpp	93.15% <0.00%> (-5.14%)	:arrow_down:
src/layer/riscv/concat_riscv.cpp	90.47% <0.00%> (-5.11%)	:arrow_down:
... and 143 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[nihui]

Thanks for your contribution !