Merge tag 'optee-valid-memory-type-for-v5.11' of git://git.linaro.org/people/jens...

Add writeback to valid OP-TEE shared memory types

Allows OP-TEE to work with ARMv7 based single CPU systems by allowing
writeback cache policy for shared memory.

* tag 'optee-valid-memory-type-for-v5.11' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  optee: add writeback to valid memory type

Link: https://lore.kernel.org/r/20201125120134.GA1642471@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>