Merge "Don't set /dev/hwrng to O_NONBLOCK" am: 94ad8ad990

Original change: https://android-review.googlesource.com/c/platform/system/security/+/2480515

Change-Id: I03cd772bb81dd413ca9623f84d4c26fbfec8ba76
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>