Update to use clang-r399163b.

Bug: http://b/155835175
Test: aosp_blueline
Change-Id: I34d26da72a36b16491cf328075d817b073acfc0d
diff --git a/cc/config/global.go b/cc/config/global.go
index f9b3cc8..d4c6266 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -134,8 +134,8 @@
 
 	// prebuilts/clang default settings.
 	ClangDefaultBase         = "prebuilts/clang/host"
-	ClangDefaultVersion      = "clang-r399163"
-	ClangDefaultShortVersion = "11.0.4"
+	ClangDefaultVersion      = "clang-r399163b"
+	ClangDefaultShortVersion = "11.0.5"
 
 	// Directories with warnings from Android.bp files.
 	WarningAllowedProjects = []string{