generic_rootdir: vold_fstab: Change '/sdcard' -> '/mnt/sdcard'

Signed-off-by: San Mehat <san@google.com>
diff --git a/rootdir/etc/vold.fstab b/rootdir/etc/vold.fstab
index 16065e9..4aad8dc 100644
--- a/rootdir/etc/vold.fstab
+++ b/rootdir/etc/vold.fstab
@@ -14,7 +14,7 @@
 
 ## Example of a standard sdcard mount for the emulator / Dream
 # Mounts the first usable partition of the specified device
-dev_mount sdcard /sdcard auto /devices/platform/goldfish_mmc.0 /devices/platform/msm_sdcc.2/mmc_host/mmc1
+dev_mount sdcard /mnt/sdcard auto /devices/platform/goldfish_mmc.0 /devices/platform/msm_sdcc.2/mmc_host/mmc1
 
 ## Example of a dual card setup
 # dev_mount left_sdcard  /sdcard1  auto /devices/platform/goldfish_mmc.0 /devices/platform/msm_sdcc.2/mmc_host/mmc1