Disable XOM in libRSCpuRef.

Disable execute-only memory layouts in libRSCpuRef.

Bug: 77958880
Bug: 120850765
Test: Built the library, checked the program headers with readelf.
Change-Id: I0ae985bf49978e1ee41619269cbe8ce0a47acc42
diff --git a/cpu_ref/Android.bp b/cpu_ref/Android.bp
index e929a9c..a82659a 100644
--- a/cpu_ref/Android.bp
+++ b/cpu_ref/Android.bp
@@ -127,4 +127,5 @@
             enabled: false,
         },
     },
+    xom: false,
 }