[bazel][LoongArch] Port llvm#168129: tablegen for sdnode

Author: rupprecht

utils/bazel/llvm-project-overlay/llvm/BUILD.bazel

@@ -2719,6 +2719,10 @@ llvm_target_lib_list = [lib for lib in [
                     "lib/Target/LoongArch/LoongArchGenRegisterInfoTargetDesc.inc",
                 ],
             ),
+            (
+                ["-gen-sd-node-info"],
+                "lib/Target/LoongArch/LoongArchGenSDNodeInfo.inc",
+            ),
             (
                 ["-gen-subtarget"],
                 "lib/Target/LoongArch/LoongArchGenSubtargetInfo.inc",