armv7/ls1021a: Reserve secure code into RAM instead of OCRAM

For ls1021a, Reserve secure code in to memory in case OCRAM
is needed by other usage.

Signed-off-by: Zhuoyu Zhang <Zhuoyu.Zhang@freescale.com>
Acked-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2 files changed