Re-add compile_multilib to statsd apex

An earlier revert removed compile_multilib: both line which caused only
64-bit variant of libstats_jni to be added to the apex when 32-bit is
also required.

This change adds both 32-bit and 64-bit variants to the apex.

Bug: 149720256
Test: m
Test: fastboot flashall
Test: launch Play Store
Change-Id: I594b290e60052e28139cd954a54ada1067d43e09

apex/statsd/Android.bp

@@ -27,6 +27,7 @@ apex_defaults {
         "framework-statsd",
         "service-statsd",
     ],
+    compile_multilib: "both",
     // prebuilts: ["my_prebuilt"],
     name: "com.android.os.statsd-defaults",
     key: "com.android.os.statsd.key",
@@ -72,4 +73,4 @@ cc_library_shared {
         "com.android.os.statsd",
         "test_com.android.os.statsd",
     ],
-}
+}