Calling platform-specific code unconditionally blows up when running
an ARCH_MULTIPLATFORM kernel on a different platform. Don't do it.
Reported-by: Paolo Pisati
Signed-off-by: Marc Gonzalez
Acked-by: Pavel Machek
Cc: stable@vger.kernel.org # v4.8+
Fixes: a30eceb7a59d ("ARM: tango: add Suspend-to-RAM support")
Signed-off-by: Arnd Bergmann