bus: ti-sysc: Do not disable on suspend for no-idle

If we have "ti,no-idle" specified for a module we must not disable
the the module on suspend to keep things backwards compatible.

Fixes: 386cb766

 ("bus: ti-sysc: Handle missed no-idle property in addition to no-idle-on-init")
Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>