[AMDGPU] Auto generated check lines for two tests (llvm#1126)

Note that this is not an NFC change because the test case
`llvm/test/CodeGen/AMDGPU/amdgpu-spill-cfi-saved-regs.ll` has been
updated due
to the recent SGPR layout change. The 32 CSR SGPRs in
`callee_need_to_spill_fp_exec_to_memory` have been adjusted to reflect
this
update.

Author: shiltian