The SCB is present on IMG SoCs other than the META-based TZ1090,
such as the MIPS-based Pistachio SoC. Relax the Kconfig dependency
so that it can be built on any MIPS or META machine.
Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>