[X86] Another attempt at fixing the intrinsic module map for rr333014.

llvm-svn: 333026

clang/lib/Headers/module.modulemap

@@ -99,7 +99,7 @@ module _Builtin_intrinsics [system] [extern_c] {
       header "emmintrin.h"
     }
 
-    explicit f16c_128 {
+    explicit module f16c_128 {
       header "__emmintrin_f16c.h"
     }