Allowed EdgeTPU service and the EdgeTPU NNAPI hal to read /proc/version.

Both services invoke InitGoogle in order to use google utilities (e.g.
file).  Since InitGoogle reads the kernel info from /proc/version,
this change added the corresponding selinux rules to allow that.

Bug: 183935416
Test: tested on Oriole.
Change-Id: Icb8f3a57e249774b5fad3284413661b04ff7dae6
2 files changed