arm: add support Actions Semi S700

This patch adds basic support for Actions Semi based S700
SoC, which is driven by common owl framework.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
diff --git a/arch/arm/mach-owl/Kconfig b/arch/arm/mach-owl/Kconfig
index 28984c1..cde2ade 100644
--- a/arch/arm/mach-owl/Kconfig
+++ b/arch/arm/mach-owl/Kconfig
@@ -8,6 +8,10 @@
         bool "Actions Semi S900 SoC"
         select ARM64
 
+config MACH_S700
+        bool "Actions Semi S700 SoC"
+        select ARM64
+
 endchoice
 
 config SYS_TEXT_BASE
@@ -18,5 +22,6 @@
 
 config SYS_SOC
         default "s900" if MACH_S900
+        default "s700" if MACH_S700
 
 endif