init.rc: Move SD card support to device specific init.rc files

Change-Id: I5745e91df2b7c5722bd6e650931d3d2d7d0eadcb
Signed-off-by: Mike Lockwood <lockwood@android.com>

rootdir/etc/init.goldfish.rc

@@ -1,3 +1,9 @@
+on early-init
+    export EXTERNAL_STORAGE /mnt/sdcard
+    mkdir /mnt/sdcard 0000 system system
+    # for backwards compatibility
+    symlink /mnt/sdcard /sdcard
+
 on boot
     setprop ARGH ARGH
     setprop net.eth0.dns1 10.0.2.3

rootdir/init.rc

@@ -1,6 +1,9 @@
 on early-init
     start ueventd
 
+# create mountpoints
+    mkdir /mnt 0775 root system
+
 on init
 
 sysclktz 0
@@ -14,7 +17,6 @@ loglevel 3
     export ANDROID_ROOT /system
     export ANDROID_ASSETS /system/app
     export ANDROID_DATA /data
-    export EXTERNAL_STORAGE /mnt/sdcard
     export ASEC_MOUNTPOINT /mnt/asec
     export BOOTCLASSPATH /system/framework/core.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/core-junit.jar
 
@@ -22,18 +24,12 @@ loglevel 3
     symlink /system/etc /etc
     symlink /sys/kernel/debug /d
 
-# create mountpoints
-    mkdir /mnt 0775 root system
-    mkdir /mnt/sdcard 0000 system system
 
 # Create cgroup mount point for cpu accounting
     mkdir /acct
     mount cgroup none /acct cpuacct
     mkdir /acct/uid
 
-# Backwards Compat - XXX: Going away in G*
-    symlink /mnt/sdcard /sdcard
-
     mkdir /system
     mkdir /data 0771 system system
     mkdir /cache 0770 system cache