AArch64: use correct SDValue # when looking for bitfield placement.

The other use really does only care about the SDNode (it checks the
opcode against a whitelist), but bitFieldPlacement can be misled if
the node produces multiple results.

Patch by Ismail Badawi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274567 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed