[compiler-rt] Create a combined compiler-rt builtin bitcode for SPIRV64 target (#214149)

This PR re-lands the compiler-rt builtin part from
https://github.com/llvm/llvm-project/pull/196656

Signed-off-by: jinge90 <ge.jin@intel.com>
GitOrigin-RevId: f6eb7c5ca11aa0d6c2463f0e7c83171362e16fd9
1 file changed