[X86] Call initializeX86PreTileConfigPass from LLVMInitializeX86Target.

Without this, the pass doesn't show up in print-before/after-all.

Differential Revision: https://reviews.llvm.org/D124973

Author: topperc

llvm/lib/Target/X86/X86TargetMachine.cpp

@@ -67,6 +67,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeX86Target() {
   initializeX86LowerAMXIntrinsicsLegacyPassPass(PR);
   initializeX86LowerAMXTypeLegacyPassPass(PR);
   initializeX86PreAMXConfigPassPass(PR);
+  initializeX86PreTileConfigPass(PR);
   initializeGlobalISel(PR);
   initializeWinEHStatePassPass(PR);
   initializeFixupBWInstPassPass(PR);