configs: Add configs for J7200 High Security EVM

Add J7200 High Security EVM defconfig.

These defconfigs are the same as for the non-secure part, except for:
    CONFIG_TI_SECURE_DEVICE option set to 'y'
    CONFIG_BOOTCOMMAND uses FIT images for booting

Signed-off-by: Andrew Davis <afd@ti.com>
[j-choudhary@ti.com: add few configs from GP variant which were missing]
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>