msm8226-common: Remove qrng daemons

Change-Id: Ifc7894f81e327d0afbfc616717a3d01f1b58c0d6
msm8226-common: Remove gpecheck script

* Unnecessary since fstab can contain multiple file system type entries
  now.

Change-Id: I3bff26489661613446e434225fc8ef11521a144a
msm8226-common: Add platform-specific SELinux policy

Change-Id: I022c335fb18947bd8aa763a8782830f6941b904a