[IFUNC] Fix ifunc-asm.ll test

It seems that llc cannot be called used in assembler tests so test that
checks asm for particular target needs to be moved to codegen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265770 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed