omni: helpers for creating omni emulator builds

Precondition: android SDK must be installed in ~/Android/SDK

lunch omni_emulator-userdebug
make

if you want to run on the same host
vendor/omni/utils/emulator/start_emulator_local.sh

if you need to copy on a different host
vendor/omni/utils/emulator/create_emulator_image.sh
cp /tmp/omni_emulator.zip to the device where you have installed android SDK
unzip into /tmp
run /tmp/generic_x86/start_emulator_image.sh

Change-Id: I1b2abeb769a21d2da21e058d9767974cad99bed7
diff --git a/utils/emulator/fstab.ranchu b/utils/emulator/fstab.ranchu
new file mode 100644
index 0000000..31958e9
--- /dev/null
+++ b/utils/emulator/fstab.ranchu
@@ -0,0 +1,8 @@
+# Android fstab file.
+#<src>                                                  <mnt_point>         <type>    <mnt_flags and options>                              <fs_mgr_flags>
+# The filesystem that contains the filesystem checker binary (typically /system) cannot
+# specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK
+/dev/block/vda                                          /system             ext4      ro                                                   wait
+/dev/block/vdb                                          /cache              ext4      noatime,nosuid,nodev,nomblk_io_submit,errors=panic   wait
+/dev/block/vdc                                          /data               ext4      noatime,nosuid,nodev,nomblk_io_submit,errors=panic   wait,check,quota
+/devices/*/block/vdd                                    auto                auto      defaults                                             voldmanaged=sdcard:auto,encryptable=userdata