Cherry picking Scf.index switch support from 22.x release#10

ArtemySkrebkov merged 3 commits intointel-staging:npu/release/20.xintel-staging/npu-compiler-llvm:npu/release/20.xfrom

dhawalsr:scf.index_switch_Supportdhawalsr/npu-compiler-llvm:scf.index_switch_SupportCopy head branch name to clipboard