Disable LTO for cc libraries passed to rustc

Bug: http://b/358211032

Having cross-language LTO adds additional constraints in the LLVM
version used by the rust and clang toolchain.  Disable LTO until
cross-language LTO is supported.

Test: make libvmbase with ToT clang
Change-Id: Idaa9c2fc3aabc6fc09a43999844b00d27028bcc5
diff --git a/libc/Android.bp b/libc/Android.bp
index 64785a5..b6e65ac 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -2227,6 +2227,12 @@
     visibility: [
         "//packages/modules/Virtualization/libs/libvmbase",
     ],
+
+    // b/358211032: This library gets linked into a rust rlib.  Disable LTO
+    // until cross-language lto is supported.
+    lto: {
+        never: true,
+    },
 }
 
 // ========================================================