tee: optee: sync cache on pre-reloc OP-TEE invocation
This change ensures both U-Boot and OP-TEE see the same content from shared memory when OP-TEE is invoked prior U-Boot relocation. This change is required since U-Boot may execute with data cache off while OP-TEE always enables cache on memory shared with U-Boot. Signed-off-by: NEtienne Carriere <etienne.carriere@linaro.org> Reviewed-by: NJens Wiklander <jens.wiklander@linaro.org> Acked-by: NIlias Apalodimas <ilias.apalodimas@linaro.org>
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