Change app_process reference to app_process32.

Required due to change 5a7ee9ad63 which makes
app_process a symlink to the primary zygote.

Change-Id: I940f6302db97f74dd57112e310014e989dc586e5
diff --git a/rootdir/init.zygote32_64.rc b/rootdir/init.zygote32_64.rc
index 3d60a31..68c0668 100644
--- a/rootdir/init.zygote32_64.rc
+++ b/rootdir/init.zygote32_64.rc
@@ -1,4 +1,4 @@
-service zygote /system/bin/app_process -Xzygote /system/bin --zygote --start-system-server --socket-name=zygote
+service zygote /system/bin/app_process32 -Xzygote /system/bin --zygote --start-system-server --socket-name=zygote
     class main
     socket zygote stream 660 root system
     onrestart write /sys/android_power/request_state wake