gta4xl-common: libshim_crypto is only available for android_arm64

* Otherwise x86_64 emulator build breaks while the tree is synced.

Change-Id: I233c4f4d9a01cc1cf4f8395d9808b364edbb563d
diff --git a/shims/libcrypto/Android.bp b/shims/libcrypto/Android.bp
index dbd9e10..aecff6b 100644
--- a/shims/libcrypto/Android.bp
+++ b/shims/libcrypto/Android.bp
@@ -15,6 +15,12 @@
 
 cc_library_shared {
     name: "libshim_crypto",
+    enabled: false,
+    target: {
+        android_arm64: {
+            enabled: true,
+        },
+    },
     srcs: ["crypto.c"],
     compile_multilib: "64",
     shared_libs: ["libcrypto-tm"],