About phone: update memory description - CM


When this change was introduced,
https://github.com/CyanogenMod/android_packages_apps_Settings/commit/ada4b1b2eb37ed31d202d54345b21b4065fe1b5f
the previously used method of showing available free memory was removed and now shows the memory capacity instead.
Users may get confused about what is being displayed for their device memory,
especially when upgrading from a older version of android in ROMs or new devices.
While some might find this patch redundant, I feel it eliminates some confustion for users about what is being displayed for the memory of their device
Signed-off-by: Paul Beeler <sparksco@gmail.com>