arm: zynq: Add smp support

Zynq is dual core Cortex A9 which starts always
at zero. Using simple trampoline ensure long jump
to secondary_startup code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig
index d70651e..f4a7e63 100644
--- a/arch/arm/mach-zynq/Kconfig
+++ b/arch/arm/mach-zynq/Kconfig
@@ -8,6 +8,7 @@
 	select ICST
 	select MIGHT_HAVE_CACHE_L2X0
 	select USE_OF
+	select HAVE_SMP
 	select SPARSE_IRQ
 	select CADENCE_TTC_TIMER
 	help