caam: don't write memory at 0 on PPC

caam: don't write memory at 0 on PPC

For non-secure boot environments pamu_init() isn't called but the CAAM
will still call sec_config_pamu_table() -> config_pamu() which then uses
an uninitialized ppaact variable. In fact, that variable is initialized
with 0, so the config_pamu() will happily assume the structure is there
and will operate on that memory. Call pamu_init() in the non-secure boot
case, too.

Signed-off-by: Michael Walle <mwalle@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>