1. fix typo:
  Modify simde_mm256_bslli_epi128 to simde_mm256_bsrli_epi128.
2. fix loongarch compiler errors:
  At present, the instructions like slli/srli/srai on loongarch
  only accept immediate constant values for shit count, so in order to
  avoid compiler errors in the build process, we need to use
  sll/srl/sra version instead. In the feature, if the compiler
  supports the formers, we can restore them.