Revert "Revert "kernel: rng: Add IOCTL support to disable bus bandwidth""
This reverts commit 911fb8222bf5f4df424368a27b1c9f513db0a9d2

Change-Id: If9d4d8be7690c2cd7d4fffba084edb7247042dd0
msm8974: update crypto to kk_3.5, enable QCRYPTO in defconfig

Change-Id: I23259f7cbb9e8aef4ee4a04be68921992a5880b1