Merge tag 'tee-shm-for-v5.18' of git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/drivers

TEE shared memory cleanup for v5.18

- The TEE shared memory pool based on two pools is replaced with a single
  somewhat more capable pool.
- Replaces tee_shm_alloc() and tee_shm_register() with new functions
  easier to use and maintain.  The TEE subsystem and the TEE drivers are
  updated to use the new functions instead.
- The TEE based Trusted keys routines are updated to use the new
  simplified functions above.
- The OP-TEE based rng driver is updated to use the new simplified
  functions above.
- The TEE_SHM-flags are refactored to better match their usage

* tag 'tee-shm-for-v5.18' of git://git.linaro.org:/people/jens.wiklander/linux-tee:
  tee: refactor TEE_SHM_* flags
  tee: replace tee_shm_register()
  KEYS: trusted: tee: use tee_shm_register_kernel_buf()
  tee: add tee_shm_register_{user,kernel}_buf()
  optee: add optee_pool_op_free_helper()
  tee: replace tee_shm_alloc()
  tee: simplify shm pool handling
  tee: add tee_shm_alloc_user_buf()
  tee: remove unused tee_shm_pool_alloc_res_mem()
  hwrng: optee-rng: use tee_shm_alloc_kernel_buf()
  optee: use driver internal tee_context for some rpc

Link: https://lore.kernel.org/r/20220218184802.GA968155@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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