Add Intel family 6 model 93 as Silvermont.

llvm-svn: 244384
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index df50aa5..bfc62d0 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -382,6 +382,7 @@
       case 74:
       case 77:
       case 90:
+      case 93:
         return "silvermont";
 
       default: // Unknown family 6 CPU, try to guess.