rhine: cleanup fstab

Change-Id: Ic3f90c8929b8f76cae569bacdeebb3bcd77f15d4
Remove local copy of android_filesystem_config.h

* We added the ids for sony_ta and sony_idd
* sony_idd isn't needed, remove it
* replace sony_ta with system and tighter perms

Change-Id: If6bb66dbc7034dd9771ca40c2e2acc57ce05cec3
Merge branch 'cm-12.0' of https://github.com/CyanogenMod/android_device_sony_rhine-common into lollipop