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H A Dconf.mkd53a692c9afc0d76caec63046d60711623677d39 Tue Jul 06 15:11:29 UTC 2021 Clément Léger <clement.leger@bootlin.com> plat-sam: move secure zone to 0x20000000

Since DRAM size can vary depending on the platforms, 0x30000000 won't
work for some of them (sama5d27_som1_ek for instance with only 128Mb of
DRAM).
Move OP-TEE secure zone to 0x20000000 which will work for all devices.
During these changes, remove the possibility to override TZDRAM address
and size because since matrix configuration can't be changed easily, it
makes no sense to allow modifying them.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>