galaxys2: use /mnt/emmc for external sdcard

Change-Id: Ifafea9bbbca32f64861db48882cf921ccb2fead3
diff --git a/products/cyanogen_galaxys2.mk b/products/cyanogen_galaxys2.mk
index 4354230..9ac19b7 100644
--- a/products/cyanogen_galaxys2.mk
+++ b/products/cyanogen_galaxys2.mk
@@ -33,7 +33,7 @@
 
 # Add additional mounts
 PRODUCT_PROPERTY_OVERRIDES += \
-    ro.additionalmounts=/mnt/sdcard/external_sd
+    ro.additionalmounts=/mnt/emmc
 
 #
 # Set ro.modversion