Pucch2 hotfix
fix bug in SIMD processing for NR PUCCH2 receiver 3-11 bit. Also randomize generation of PUCCH2 payload in nr_pucchsim for better test coverage in CI.
fix bug in SIMD processing for NR PUCCH2 receiver 3-11 bit. Also randomize generation of PUCCH2 payload in nr_pucchsim for better test coverage in CI.