Disable XOM in linker, libc, and libm.

These modules have issues running with execute-only memory. Disable it
in them until we can resolve the issues.

Bug: 77958880
Test: No more XOM-related crashes in these binaries

Change-Id: Ie6c957731155566c2bbe7dbb7a91b9583d9aff93
diff --git a/libm/Android.bp b/libm/Android.bp
index 6d55967..e4ba20d 100644
--- a/libm/Android.bp
+++ b/libm/Android.bp
@@ -514,6 +514,9 @@
         integer_overflow: false,
     },
     stl: "none",
+
+    // TODO(ivanlozano): Remove after b/118321713
+    xom: false,
 }
 
 ndk_library {