[gn build] Port eddb79d

Author: llvmgnsyncbot

llvm/utils/gn/secondary/clang/lib/Headers/BUILD.gn

@@ -131,6 +131,8 @@ copy("Headers") {
     "amxfp16intrin.h",
     "amxfp8intrin.h",
     "amxintrin.h",
+    "amxtf32intrin.h",
+    "amxtf32transposeintrin.h",
     "amxtransposeintrin.h",
     "arm64intr.h",
     "arm_acle.h",