n5100: fix internal storage
n5100: fix internal storage

Change-Id: If686ca5203aec18f8cd5e45f5754e4f39fb41105

DirtyUnicorns/android_device_samsung_n5100,tejkkarani/device_samsung_n5100,tejkkarani/device_samsung_n5100,SlimRoms/device_samsung_n5100,Split-Screen/android_device_samsung_n5100,omnirom/android_device_samsung_n5100,TeamWin/android_device_samsung_n5100,CyanogenMod/android_device_samsung_n5100,TeamWin/android_device_samsung_n5100,cyandream-devices/android_device_samsung_n5100,DirtyUnicorns/android_device_samsung_n5100,Split-Screen/android_device_samsung_n5100,SlimRoms/device_samsung_n5100,CyanogenMod/android_device_samsung_n5100,cyandream-devices/android_device_samsung_n5100,CyanogenMod/android_device_samsung_n5100,omnirom/android_device_samsung_n5100,Split-Screen/android_device_samsung_n5100