fix sdcard mounting; added proprietary files to file list; oncrpc permission for rild

This Pull have dependencies:

- https://github.com/PantechDevTeam/android_device_pantech_qcom-common/pull/14
- https://github.com/PantechDevTeam/android_vendor_pantech_presto/pull/1
- https://github.com/PantechDevTeam/android_kernel_pantech_msm8660-common/pull/1

Thanks.