Merge tag 'tee-bus-for-5.1' of https://git.linaro.org/people/jens.wiklander/linux...

Merge tag 'tee-bus-for-5.1' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

Introduce TEE bus driver framework

- supp_nowait flag for non-blocking tee requests
- The tee bus driver framework
- OP-TEE TEE bus device enumeration support
- An OP-TEE based rng driver

* tag 'tee-bus-for-5.1' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  hwrng: add OP-TEE based rng driver
  tee: optee: add TEE bus device enumeration support
  tee: add bus driver framework for TEE based devices
  tee: add supp_nowait flag in tee_context struct