Target the denials/policies over qtaguid file and device: 1. Relabel /proc/net/xt_qtaguid/ctrl from "qtaguid" to "qtaguid_proc"; 2. Label /dev/xt_qtaguid with "qtaguid_device"; 3. Allow mediaserver read/[write] to qtaguid_proc and qtaguid_device; 4. Allow media apps read/[write] to qtaguid_proc and qtaguid_device; 5. Allow system read/[write] to qtaguid_proc and qtaguid_device.

Actually, some of policies related to qtaguid have been there already, but
we refind existing ones and add new ones.

ocontexts was split up into 4 files:
1.fs_use
2.genfs_contexts
3.initial_sid_contexts
4.port_contexts

Each file has their respective declerations in them.
Devices, in their respective device directory, can now specify sepolicy.fs_use, sepolicy.genfs_contexts, sepolicy.port_contexts, and sepolicy.initial_sid_contexts. These declerations will be added right behind their respective sepolicy counterparts in the concatenated configuration file.

Add key_socket class to socket_class_set macro.  Allow system to trigger module auto-loading and to write to sockets created under /dev.

perms.

Signed-off-by: Joshua Brindle <jbrindle@tresys.com>

Tested on a maguro variant.

Change-Id: I99085d575e3d884fb04ac03ac998eb3c53eb2d9f

Change-Id: I22f49db3d59b50ed8975d8c1146bb9c322adbf7e

Only label properties with the ril. prefix with rild_prop.
Allow rild and system (and radio) to set radio_prop.
Only rild can set rild_prop presently.

New property_contexts file for property selabel backend.
New property.te file with property type declarations.
New property_service security class and set permission.
Allow rules for setting properties.