Disable sanitization of crt objects.

The accompanying soong change causes sanitize attributes to be allowed on
cc_object targets and propagates sanitize attributes into dependencies. This
is problematic for the crt objects in sanitizer builds because everything
depends on them including the sanitizer runtime, so a circular dependency
would otherwise be created. Furthermore, some of the code in these objects
runs before sanitizer initialization so it is unlikely that sanitizing them
would work anyway. Therefore, disable sanitization on these objects.

Change-Id: I25380dfc8eed5db34b034ba127a9d6b5674032fa
diff --git a/libc/Android.bp b/libc/Android.bp
index 4abb32f..9e2e691 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -1891,6 +1891,9 @@
         "-Wall",
         "-Werror",
     ],
+    sanitize: {
+        never: true,
+    },
 }
 
 cc_defaults {