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H A Dtee_rpmb_fs.c9cc10bc9558504e1a9f03f5d535d9041255e1391 Thu Apr 25 14:12:19 UTC 2019 Jens Wiklander <jens.wiklander@linaro.org> core: derive RPMB key using huk_subkey_derive()

tee_rpmb_key_gen() uses huk_subkey_derive() to derive the RPMB instead
of MAC:ing etc directly.

Note that this is only backwards compatible if
CFG_CORE_HUK_SUBKEY_COMPAT=y.

Reviewed-by: Joakim Bech <joakim.bech@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>