goldfish: use fstab.goldfish

Don't rely on init.rc to mount our filesystems for us.
Do it ourselves from fstab.goldfish.

Change-Id: I80ba51f34e8d34b24bc7b14f527ac507d2d819e1
diff --git a/init.goldfish.rc b/init.goldfish.rc
index 84c4b15..c850ba2 100644
--- a/init.goldfish.rc
+++ b/init.goldfish.rc
@@ -59,6 +59,9 @@
 # supported, and arbitrary breakage may result if you specify
 # something else.
 
+on fs
+        mount_all /fstab.goldfish
+
 service goldfish-setup /system/etc/init.goldfish.sh
     user root
     group root