msm8974-common: use qcom bionic optimization

Change-Id: Iac9174a2ac0d41319ca0c2e66f6ae7c94bc7b3f2
msm8974: sepolicy: Update based on upstream changes

Upstream renamed "system" to "system_server" and added the
gpu which is not a duplicate.

Change-Id: I5ca5098c653f09c7901343d0ae71793f6eb21ab8