Switch to clang-r365631b

Bug: https://github.com/android/ndk/issues/1076
Test: TH
Change-Id: Ica61fd13d9d7ecc742a7a89f5bb04cc6e1caf9f2
diff --git a/cc/config/global.go b/cc/config/global.go
index d873494..1bbc6f0 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -123,8 +123,8 @@
 
 	// prebuilts/clang default settings.
 	ClangDefaultBase         = "prebuilts/clang/host"
-	ClangDefaultVersion      = "clang-r365631"
-	ClangDefaultShortVersion = "9.0.6"
+	ClangDefaultVersion      = "clang-r365631b"
+	ClangDefaultShortVersion = "9.0.7"
 
 	// Directories with warnings from Android.bp files.
 	WarningAllowedProjects = []string{